I think everyone is responsible for their own actions. Personally, yes I've been mad at the game at times (especially in the beginning when you learn about all the visual qualities and things that don't do anything) I've come to peace with the way the game is but that still doesn't mean I can't have something to say or suggest. I never insulted the devs and I probably have never even even used the f-word (maybe escaped me once). It is not in my nature in real life and I see no reason to behave differently online. I still think like there are good suggestions there are good criticisms. Everybody agrees it was a huge failure to make such a huge update without giving insights and even compromising peoples entire season.
I don't see anything wrong with the suggestion thread, the problem is this
50% of suggestions unrealistic or bad and get ignored
40% good ideas but hard to implement in a game like this.
10% actual great ideas like bug fixes and things that can make the game more user friendly.
The problem is they get ignored every time even thou they get sent to the devs, this of course leaves a bad taste in many people when they see radical changes that no one requested when minor other things have been demanded.