Imo they should be left as they are. Demo racers using old patches are NOT breaking any rules (assuming they aren't modding or cracking the game). Old versions are not compatible with the current version, so they are mutually exclusive. They can co-exist on the server, and I think they should. There's no reason to cut off the old patches, unless you really wanna tick off the 3 people still using them. Heck, I wish the old S1 versions would still work too for some classic racing, but that's probably not going to happen.