Just played with the editor for the first time (Awesome BTW) - couple of suggestions:

Can you put a 'legend' next to the level table with the graphic and the name of the enemies - I guess after a while I'll know what a Green Goblin is - but would still be nice - specially if you add more enemy types down the line.

When you allow public released levels - your going to need to have some kind of moderation filter- or report map option - I can see the creative talents of the kiddies going wild.....

The ability to allow people to make publicly available tournaments is not hard for me to do as most of all the coding is done. I just wasn't sure how I should implement it yet.

The last thing I want is 100 people to make public tournaments and the main tournament selection screen to be over flooded choices.

My initial thought was to make it cost quite a bit more to start a "site wide tournament". That would solve some of the problems... but I'm still not sure how to go about this.

As for the moderation, I already have a report system integrated into the site. I guess if someone makes an inappropriate map people could report that user and I'd remove the map and warn/ban the user.