Suggestion, lock our own topics.

[Resistance]

Since when does post count prove a member as "high-quality"?

Assuming there posts are high-quality, of course. There is no need to carry this subject further. Thank You.

As a sidenote quoting from the Help Docs:
"Additionally, a moderator of a forum may have closed a thread meaning that users cannot reply to it. There is no way for a user to open such a thread without the help of a moderator or administrator."

I think this settles this thread/case.