Voting for nominations is not allowed. This makes sense - voting shouldn't start until everyone is ready. This allows late entries to get just as many votes as early ones when the election starts.
Comments seem to break this rule. Nearly every candidate has a, "+1 I'll vote for you" style message that gets voted on in lieu of the actual nomination post. These posts add very little other than serving as a way to vote early.
Should this be allowed, or is it working against the system?