That's why it's so important that you make sure you really want to post what you post. Of course, if there is a major edit that needs making, one can report their own post and we'll do our best to get it edited for you. You can also request to have the post/thread removed by reporting it as well. Please keep in mind that we only allow a small number of posts/threads to be deleted.
If we were to allow members to edit their posts longer than the 4 hour window, we could end up with a lot of replies that may not make sense if they were made before the edit was done. Also, if you wanted to delete a post that was the beginning of a thread, it would leave all the replies out there and they wouldn't make sense either.