I made 3 comments using my account, and I know it's new one, but they are just a comments, why it has to take all this while to be approved ? Or why it needs approval in the first place ???
Perhaps because you created your account less than a day ago and haven't filled in your bio, replied to any topic in the community or anything. So as far as the itch.io server knows, you could be a spambot.
(Note: I don't actually know what the heuristics are, but similar rules exist on other sites.)