I guess the map-poll-change needs to be controlled/limited then. Otherwise tryhard-funny-trolls spamming it constantly and you get a similar situation as I remember from the FullInvasion2 mod once, where you couldn't play a single map for more than 2-3 mins.
I think it would save the population tho, if working, when you get a crap map in EU1/2 and no admin is available or willing to change it.
Not on DTV please. Would be abused to play on easiest map all the time :d