You can argue over the descriptions all you want, but the reality is, one mode of expressing an opinion is perfectly fine on this forum, and another gets people ejected. People who want to post here are well advised to understand the difference.
And what you said in the post I quoted is akin to insulting people who don't like a set list and want to express it. Admin or not, that's how it came across. Do I think that's what you intended? Absolutely not. But people should not fear wanting to post something critical on here.
You may run this board like it is an official forum, and that's great. But people should not be afraid to say "hey, I think this song sucks and wish they would have played this instead." That's a perfectly legitimate statement.
Your post made it seem that those sentiments and expression weren't welcome. And I sincerely hope they are, because if not, why not just re-brand this place as "Dream Theater Public Relations HQ?"
Glad you had fun at the show. I did too. Great gig.