Old, there is no way to tell who manipulated the poll as the votes show up as "Guest" when you have to be registered to vote. There is a way around this that we found.
As for the other issues let's all play nice. There is very little traffic on the weekends and even though every thread and post is important to the participator, we did take the non-peak time in to consideration.
We do not have our settings set like most boards do so that thread starters can't delete their own threads. We have had many occassions where people started a thread while in a bad mood or under the influence and were glad thay had the ability to delete it before too many eyes saw it or waiting for the help of a moderator or admin.