Teo has just changed the way the edit post function works. It is now settable by the forum admin on a per-forum basis, rather than on a per-thread basis as before. This removes the annoyance of having to set this option on every thread in forums where this functionality is used a lot. It replaces the per-thread switch.
Kevin will also be working on functionality to allow posts to be edited up until a reply is made, for cases where the poster sees a mistake too late. This will be a Discogs wide update, but won’t happen for a few weeks.