> I disagree with your assessment, if I remember correctly I posted three times on that sub.

The sub currently requires moderator approval (specific flair) to comment on most threads.

The parent commenter is correct: It is widely known as one of the most censored subs on Reddit because the mods remove comments from unapproved accounts (those without flair).

Their rules claim that some threads are open for everyone to participate in, which may have been the case in the past when you commented.

However it’s not true for any of the popular threads. They will remove comments from unflaired accounts

This is all state in their rules. It’s not speculation. The parent comment is correct.