FanEdit.org has been around for a long time, and has always been very clear about warding off piracy. With my own projects, I’ve felt comfortable featuring my real name in the edit’s credits, along with my voice as commentary in a separate audio track. I always run the anti-piracy warning at the front of the movie, hard-encoded into the file itself, as well as repeated on any text or descriptions that come along with it. Given the track record FanEdit.org has had so far, and relative popularity as a hub for this sort of thing, I think as long as you respect the rules and maintain a consistent position against any of the obvious things that would make copyright holders angry, you’ll be fine.
And, if you are just talking about downloading and watching fan edits, you’ll be fine anyway.