Let me preface this by saying I believe the dev team have in general done a great job; there are some design decisions I don't agree with, but then again they will never please everyone.
That being said, 3 things
1: Trying to stifle discussion by declaring who can and cannot post in *your* thread is a) a red flag to a bull b) shameful. These people are posting relevant opinions about why they do not feel thankful. People who disagree with you/your thread are not trolls simply by nature of posting their disagreement.
2: These aren't your boards, you are not a moderator and are acting like a child.
3: The most shameful part of this thread is your attempt to stifle debate.
