Some times it's easier to read one poll than it is to read a dozen replys to a questions, where half the replys are from the same two people arguing with each other.
If you think polls should be removed because you consider a couple of them to be pointless, then you might as well ask to make all posts moderator-only.
Just like anything in this forum, if you don't want to read it, don't.
Any polls the Admins think are wrong can be deleted.