I have noticed sometimes when myself or a customer goes to post on a thread that has been posted on within the last 8 hours they're receiving a message about how they can't bump yet and to try again later.. It doesn't happen all the time but I did make a report on it weeks ago, I think it's counting any post within 8 hours whether you're the OP of the thread or just a normal person posting a reply/vouch. This doesn't happen 100% of the time, I would say about 5% of the time it's giving a posting error.
Tagging
@Sythe so this can be addressed, not sure if bug reports still get looked at.