not able to post in a thread

I'm a long time lurker, but just recently registered. I started a thread in Marksmanship and Gun Handling, but when I try to post subsequent replies, I get the following message:

Thank you for posting! Your post will not be visible until a moderator has approved it for posting. You will now be taken back to the forum. If you opted to post a poll, you will now be allowed to do so.

I did some searching and can't find anything saying that this is normal for new members, so I'm wondering if I triggered some anti-spam filter. Could a mod take a look and see if I messed something up?

thanks

Not a problem. I just wanted to make sure there wasn't some error or something I did to mess it up.