Yeah, I heard about the proxying. But then again, other than resteemable (whose personal politics I know nought of but who I feel I may forever be indebted to), I wouldn't have a clue who to choose to be the one.
Hence, I guess I'll go with your first suggestion for the foreseeable future. I just wouldn't want current voters to suddenly decide they might not know enough about those they're currently voting for (on seeing my comments here or Bernie's, even), decide to remove the votes they've cast and the whole thing then falls apart.
I'm sure it'll never quite come to that though! ;)