You know that creating your own signing certificate is not significantly more difficult then making a self-signed... I mean I started off with self-signed for mucking around with doing things, but figured that since I am worrying about encryption anyways I might as well do it myself.
It just strikes me as a bit lazy. Not a lot lazy as the SSL/TLS stuff is difficult to get right. But for as long as this stuff has been out it should be fairly simple to do.