I'd want to really look at the actual data to see how many posts a member has at the time they mistakenly post a thread to an article. In theory, if someone is actively posting 25 times in the forum, they should know by then the difference between a forum thread and an article... and (IMO) if they don't by then, then making it 50, 100 or 1,000 might also not make much of a difference.Maybe it could be 50 or something instead?