I’ve just made some big changes to the internal logic of the forum. Most of them should be invisible to the user. The two most visible changes are that you can now edit your post on the Message Preview page, and the message size limit has been increased to 32 kilobytes (over 500 lines of text).
Please let me know if you see anything wrong, or even something that looks a bit odd. It could be a symptom of a bigger problem.