Good post OP, you should write a book on how to post in a forum.
A couple of things stand out for me: firstly, maybe there should be a “Rants” forum, just for members to vent their spleens. Wouldn’t do any harm.
Secondly, one of the glaring (to me) problems is the following, and I can illustrate it thus: imagine a Windows forum where someone asks for help with a problem with Internet Explorer. Half the answers will be along the lines of “Download and install Firefox, it’s better”.
Now, you may hate IE (I’m a FF fanboy myself too), but it’s the OP’s choice what browser he uses and it doesn’t answer the question.
Translate that into MSFS problems and posters’ favourite addons/fixes/mods and you get the idea.