My biggest problem with the fan edits is how difficult it is to do research on them. If they're not listed in the DVD Index (and a LOT of them aren't) then the threads are difficult to find (which might have a lot to do with the search function). When you can find the thread for a particular fan edit, the specifics/details of the edit often aren't in the first post, as they logically should be.

Other than that, I don't have any problems with fan edits per se-

I can't wait for those '04 DVD/Gout hybrid OT editions. Who's doing those again? ;-)