Not that I expect Richie to be reading this right now, especially after all the drama that erupted here, but I'll put in my two-cents worth while I can concerning the series:
To me, the StMBros series ended with the movie, where (honestly) I think it was intended to (or at least SHOULD have ended). Aside from the extra buffering of things added onto the second act due to people like Doug appearing for filming, the core of the original movie was very strong and had some very nice production value in filming/editor/writing. For that reason, on such a high note as it was, it was a very strong way to leave things to be.
Now, as it is with such a grand "ending" they had to bring it back, but that's not to say it wasn't a bad thing.
With OBS and Season 4, I was simply happy to see the series return. I didn't care about it as much as I had for the movie though (which I had gotten legitimately hyped for), but I was honestly surprised to see the return of the video quality and blooper videos (which really captured my interest). In that, I felt season 4 was the weakest of the seasons then, but looking back on it now (with it all out), it's certainly something of its own in comparison to the other season, much like how the moods were normally very "Funny" or "Serious" and not both. For that reason, and the none-linear plot (for the most part), it was both intriguing and enjoyable to watch, wondering what was happening, going to happen, and what was to come. For that, I believe it was still worth having been made, even though the movie was clearly stronger and series (to me) had passed by. Also, the ninjas were funnier in this season than in season 5, and a VERY nice touch for it.
Now, season 5... Not doing it for me.
Now, this might be because I'm working full-time and have lots of other distractions in my life, but honestly, I knew from the initial realization of Richie's limitations in editing/writing/casting/costuming that this was probably going to be his attempt at something "grand" and that it was going to fall flat. Given what he wanted and what he could actually do, that's all I had to make my judgement off of and (personally) I would have pulled him aside and said "Alright, lets focus on what's important first and ensure that's solid before we start throwing too much wood on the fire". In that, I'm unsure if I will be able to look back on season 5 as I have with 4 and say it's more enjoyable than I remember. For me, there's a lot of senselessness thrown into the mix of a trying-to-be serious plot while also retaining humour like is season 4. In that, it's not working out as well and, I will probably have to say, it's the weakest season by far.
Now, is it actually "bad" aside from being "weak"... At times, yeah, it's pretty painful. I can't get over Matt as Ganondorf (at first I thought it would be awesome and funny, then I looked at him, listened to him, and watched him, then realized how wrong I was. Also, you didn't need to try with the green skin [Heck, Bowser's human. Just have Matt look appealing, alright?] and his costume looks like a brown stuffed pillow with a black garbage bag cape. Considering how great costumes had been for, say the Darkness, I was pretty disappointed in it. Sorry if this comes off as hate; I'm sure you got reasons for it being that way), I can't get over Mona's sudden change in personality (Even if for comedic relief, she should have remained as a "lovable" girl she was before [cause she was different and FREAKING CUTE!], not adapted into the very serious character. That, and I hated her spiteful leaving just to give Wario the excuse to be angry again. It wasn't even that impacting to watch, just more like "Oh god, Richie's playing this card now..."), I can't get over the abundance of senseless characters that were getting too much screen-time (this is more of a personal thing. I'm just a fan of watching a small cast of flushed-out characters than I am watching a bunch of characters get brief moments of importance without and focus on who's best suited for focus at the time), and I can't get over how much Richie ruined the Darkness' personality (I'm sorry, but I'm part of a growing mob on that, Richie. He does look nicer [and I could have even dealt with the red hair change. Heck, look at my artwork of him with it, it looked great and I think it was a nice attempt to re-detail him. Sorry others didn't think so. Link: http://lordgavinmaclean.deviantart.com/gallery/?offset=48#/d3j8n7i
], but he doesn't even SOUND like the same character anymore. There's only one thing that will change that for me and ONE THING ALONE: If the darkness, in having the spell used upon him to turn him human, actually has gained a sense of humanity. If you do anything to work along those lines, I'll forgive you, but that doesn't take away him having a personality that is still far weaker than his former).
Oh, one extra minor note: Richie, it might be me being in film and animation for a business, but I completely HATE some of the effects you're using (like the new Waluigi Fireball and Nox's Blast), the lack of overall video quality, and random sh*t audio quality that's in this season. I donno what happened, but why did the quality keep only going up all the way to season 4 and then, suddenly, take a nose-dive into sh*t for season 5? Did you lose a good camera and need to resort to a cheaper one? As well, concerning your visual effects, this may just be personal as, if I sat down for a little bit, I could probably do much better than you, but this is coming from someone in film and animation, remember. Again, sorry if all this sounds hateful; it's purely me noting for you some stuff that bugs me in terms of my interests as an animator.
Well, that's my rant. I'm trying my best to also show you the light of what you've done, Richie, and that your originality in basis off the Nintendo series is not hated upon. However, your technical ability to produce certain things can sometimes hold you back as well as your ability to write a script with some reasonable interest and solidity (I know it's hard, especially for a 15 episode series limit and taking into account other things, so I don't hold it against you. This is just observation). In that, I'm still your subscriber and, honestly, I'm waiting for you to finally put StMBros down and start doing what you've been (on the other hand with) very good with: Random videos. I have almost NOTHING against anything you do for the heck of it while not trying to make a story out of things. When you do this, I can't wait to see what you'll produce, knowing it will be more focused and directed for entertainment. Also, thanks for bringing back "Smashing Stuff", keep it alive.
Think I'll stop here. Love to know if you ever see this Richie and I hope it doesn't end up ruining your day, or something. I'm your fan and willing to support you all the way (and heck, I'd help if you needed it. Not like I couldn't, I got the skills for it. Ask ANYONE here that ;P). Take care, and I'll savor my final words for you until the season/series is finally over.