It's simple, but that's probably a good thing, since it will lag a little bit less and it will make the battlefield less confusing. 9/10 since some there probably should be a few shrubs in the grassy area near where the units spawn. Just to give it a little depth.
Probably not all of them are completely leakless. Like that text tag one. Those all leak a location atm... I'm not going to say there aren't any more, because chances are, there are.
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.