Were you aware you don't need to write "Poll" at the beginning of your poll?

In My Humble Opinion
1

The board software automatically addes a “Poll:” to the beginning of all polls. When you start your subject line off with “Poll:” it will come out as “Poll: Poll:”.

2

I’ve never actually noticed any Poll Poll threads so apparently the vast majority of Dopers are in fact aware of this.

3

Well, there are currently two on the first page of IMHO, so there are certainly some.

4

It’s one way to indicate that a poll is forthcoming, for that time between when you submit the OP and get the poll options done.