As a new user to the site, I spent about an hour trying to figure out why I couldn't post to a particular board. Not really a big deal, after the fifth try I dug around to find out if others were having the same problem, and found the answer. I didn't have enough posts to qualify the section in question, and this makes perfect sense to me.
It would be helpful though if the forum responded with a message saying why I wasn't allowed to post. The message I got made it look like the forum software barfed. Not a big deal, but might be worth the time to fix if enough new folks are encountering it and you have to respond to questions regarding the issue.
Thanks for your time and thanks for the board.