I would counter with the claim that more often than not the people who could be just talking about X instead get themselves drawn into arguing with those other people.
Quite frankly, I think most threads here get made that seem to me to be vehicles for getting into arguments, rather than just passing on information or asking for assistance. Rare is the thread where the poster says "Here's a problem I've found in D&D with my game, and here is what I did to fix it"... because usually that thread gets several responses of "Okay, that's cool" and then thread ends. There's nothing to discuss-- a problem was highlighted and immediately fixed. Then the thread drops from the front page and is never seen again.
Or the other rare type of thread is someone who has an issue, asks for assistance, and then receives several suggestions from other posters... and the person says "Okay, that helps! Thanks!" And that thread also ends because the question was asked, and the answer was received. And again, POOF!, off the front page.
Instead... what threads usually are is someone who makes a statement about something they have an issue with... and are not asking for suggestions on to fix their problem, they just want to vent. And they vent away. Which is fine! Venting is good, venting can be fun, and venting can help deal with frustration. But at the same time... venting about something you have a problem with on a message board means you will
receive several other types of responses-- people who agree with you, people who don't agree with you and will say why you are wrong, and people who will try and "solve" your problem with suggestions (even if you didn't ask for solutions.)
And yet the original poster sometimes seem
surprised when they receive those responses! Like a person thinks they could say here "The D&D Inspiration rules suck and are the stupidest and most useless rules in the game"... and that a post like that would just... get acknowledged and go through with no response and no defense! Everyone is going to agree with them! Really? Does anyone
truly believe they can just rip apart a section of the D&D game-- a section that probably has quite a number of defenders who actually LIKE those things-- and not get people to chime in with the opposite take? Who actually thinks that they could do that?
At the end of the day... if anyone makes an open-ended thread that doesn't end after like six posts with either an acceptable answer being given to a question or just a handful of "Good job!"s... you are going to get people arguing about it. And if you don't like that people are responding to your thread that way... then you probably need to change how you present your ideas in thread. Or at the very least... just voluntarily not engage with the people who are telling you they think you are wrong. You don't HAVE to argue back, you know. And even more importantly, don't QUOTE someone else in thread if you're trying to avoid getting into an argument, because any time someone directly responds to another person via the quote function, that other people is going to quote you back themselves. And that's the easiest way to get drawn into an argument.
If a person doesn't want to argue... they can just choose not to engage with the people who are goading them into it. But realistically I think people WANT to actually get into arguments and discussions and back-and-forths here... which is why some many of the threads are nothing more than hot takes meant to get other people up in arms. Because sometimes getting the chance to tell other people you think they are wrong is a hell of a lot of fun.
Goodness knows I love doing that to most of you most of the time.