[Demisis_P2P]

This idea has been discussed before and I remember wanting to do this.
But it wouldn't be fair to everybody who has paid money for hats thus far (some of which sold for ridiculous amounts in the past) if hats were made free for everybody now.
If it was going to be implemented it would be something to implement after a reset.

Hat items are also good because they allow control over which hats are and aren't allowed, and clearly show which hats are available on the server (as opposed to just going through a hats folder on your computer; nothing worse than looking for a head for 40 minutes, finding one you like, and then going to use it and it's from some other server).