I'm late to the party, but hopefully I have something to add. To be completely honest some of your criticisms were valid. I personally like to say that Nintendo makes great games and systems, but is absolutely horrible at everything else (online, marketing, distribution, etc.). They've been getting better in recent times, but even then we still have to use a ****ty phone app for online interaction compared to, you know,
THE CONSOLE. The ESRB hearings could've been handled better, but Nintendo had to take the moral high ground for the sake of coming across well to families. I'll always laugh at this though:
However, there are some holes in your argument. For one, Nintendo is the reason that Playstation exists in the first place. Playstation is the failed result of a collaboration between Nintendo and Sony to make a CD addition to the SNES; If Nintendo weren't successful then they never would've approached Sony to work together in the first place. I'm not saying that you should praise Nintendo for it, and maybe this isn't even a point, but I find it ironic that you criticize a company for their flaws when said flaws resulted in the media that you praise so heavily being created. Additionally, you're overcritical of Nintendo but look towards Sony with rose-tinted lens; Sony is far from perfect, and suffers from similar problems compared to Nintendo and by not acknowledging that you come off as hypocritical.
I think the main reason you were met with so much vitriol is the polemic nature of your argument and the nature of your argument itself. You came out intensely against Nintendo and two of their most beloved series, which for one is confusing for a Nintendo-based forum (I understand you later said that you enjoy other Nintendo series, but without that caveat it makes little sense for you to be here), but is also insensitive to the fanbases of those games. It's okay to not like something. I don't like Golden Sun or Xenoblade Chronicles 2. I think Golden Sun is boring and Xenoblade Chronicles 2 is as cringy as bad harem/slice of life anime, but at the same time I respect the people who do enjoy those games, nor do I wish those series were less popular for my own sake.
Another thing is that the nature of your argument is selfish. It can be boiled down to "I don't like x, but I do like y, therefore x shouldn't be as popular so that y can be and I can get more of what I want." It assumes a hypothetical (that if x weren't as popular, y would be when z could've popped up to take x's place, still leaving y in the dust) and doesn't consider the emotions of other people. People don't like being disrespected.
I do understand where you're coming from though. I've experienced what you have many times within the anime community. Why does Sword Art Online keep getting adaptation after adaptation when Ouran High School Host Club is an amazing story that only has 1 season made and is a much better story that deserves so much more? Sword Art Online has a large fanbase that'll tell you it's sooooooo great when in reality it's absolute garbage and they seem delusional at times (I once saw a reddit post on the SAO subreddit of some guy asking whether he should buy the latest SAO game or food for the next two weeks as he only had enough money for one or the other; guess which one was suggested more?). Reki
Kowabunga Kawahara is a terrible writer, yet the success of his series has catapulted him into stardom over other, better light novel writers who deserve better, and series such as Log Horizon are tragically overlooked in favor of the much worse Sword Art Online.
The difference, however, is perspective. Similar to how you enjoy Nintendo games but not Nintendo, I enjoy Sword Art Online for what it is: a bad anime. Instead of looking at the negatives, such as horrible plot and characters, lazy writing and exposition dumps, borderline wish fulfillment in the form of
God Kirito, I look towards the good, being solid visuals and animation, and the capability to turn off my brain and make fun of it. I also understand that people genuinely enjoy the show, and while I may not understand that and may disagree with said people and their life choices, that's their choice to make and it has no bearing on me, just how SAO's popularity ultimately has no bearing on that of Ouran High School Host Clubs, and how Nintendo's popularity has no bearing on Sony's. I also understand that that's just how it goes sometimes. Sometimes we don't get our way in life, and while it sucks, it's just life. There's no reason to get up in arms about it, especially when it won't accomplish anything; you don't see me going after Erdrick or Geno fans because Sora likely isn't the Square Enix character.
You simplified a much wider issue (a large abundance of character platformers, a problem which stems back to the SNES era) and conflated it with arguments from the console wars to come to a jaded, misinformed opinion that you then used to go after a discussion board that would, understandably, have a largely differing opinion. While the reactions that you got from some people were rude and certainly not okay, one, you have to understand where these people are coming from, and two, you have to cater to your audience. I believe a much more subdued opinion, like
would've gotten you much better reception compared to what you said, which sounds more like anti-Nintendo propaganda one would find on GameFAQs.
There's more to life than this internet forum, and if you're getting significantly heated up then that's a sign to step back, take a deep breath, and maybe take a break for a while. I know you and I may disagree at times, but I wish you nothing but the best.