Not at this time, but I'm very curious -- why limit the number of posts/thread like that?

Due to the nature of our board, we want to try to keep posters focused and on-topic with their situations. Once the threads get too large, that's tough to do. It has the tendency of becoming more of a blog, which we want to try to avoid.
A lot of our members are constantly on the board, especially during the nights and weekends. It doesn't take long to get a couple of hundred posts on a certain thread, and lose focus of staying on track for what we want to accomplish.