Earlier, I used encourage people to vote on questions which has less than 10 votes and thus effectively use their 5 votes for the benefit of the proposal (like I did here). But now I understand that objective is not only about getting 40 questions with 10 up votes, but to identify the best/worst questions for that proposal.
In that case, if I find a question up voted by me has more than 10 votes, I can undo that vote and vote on some other question which has less than 10 votes. Is this desirable?
My suggestion is that, there should be a lock on votes (say after 10 minute of vote time) that prevent user from removing that vote from the question. The lock should get unlocked if the question got edited.
I hope this isn't a duplicate, I couldn't find one.