vitold, looks like the "reply" thing is working OK for you now.
I can almost assure you that you aren't being labeled a Spammer. Especially since your join date was over three years ago.
Without knowing all the details, I'm willing to bet that one of your previous posts contained a link. Members with less than "X" posts...I think it's 5 or so...who put a link in their first few posts get their posts sent to a queue.
The moderator of that forum then needs to look at that post and clear it before it'll appear.
I'm guessing that's what happened to your earlier posts.