Why are "keep" closes reviewable on DRV? It seems kind of silly since if someone really wants an article deleted, he can AFD it again. (and again and again and again)
DRV serves a very different purpose than AFD. AFD is about articles, DRV is about debates. You should be able to contribute to a DRV without ever reading the article, you just need to read the AFD. (Which is why we don't automatically undelete things for the length of the DRV.) If you put something up for AfD and everyone says "keep", and it's closed as keep, then if you still think it needs to be deleted, you would have to go through AFD again. If everyone says "delete" and it is closed as keep, then you should go through DRV.
We really should delete comments about the article from DRVs, they aren't relevant. Too many people seem to think DRV is just another AFD.