Another small drop the never ending stream of improvement suggestions:

When someone sends you a setup and you click to save/name it, LFS could, as a default, keep the original name of the setup.

Not a bad idea. The default name in the save dialog box could be the original name from the person who sent you it rather than an empty box. Would obviously be a potential problem if a setup with that name already existed on your machine, but that would only take a little bit of work to solve.

+1

Quote from amp88 :

The default name in the save dialog box could be the original name from the person who sent you it rather than an empty box.

Actually, I'd prefer it to be to be the actual file name of the source setup.

bumpity bumpers in the bump bump bump
I think it should be mandatory to keep the setup name so that its like putting your name on a skin to prove that its your work. If the name is already taken on their list, yours becomes ex. race1 race2 etc.