It would solve the problem that many people forget to change their votes after a game if they changed their opinion about a map and are not able to do it afterwards.
Adding to this, it might also be good to make the vote on /maps possible only after you have already voted on it in a game to prevent people voting for a map they haven't played on yet.
Based on this suggestion: https://www.reddit.com/r/TagPro/comments/3gcz5i/psa_dont_forget_to_change_your_map_votes_at_the/ctwzblo
It would solve the problem that many people forget to change their votes after a game if they changed their opinion about a map and are not able to do it afterwards.
Adding to this, it might also be good to make the vote on /maps possible only after you have already voted on it in a game to prevent people voting for a map they haven't played on yet.