No they don't. I know of at least one forum that has an excellent collection of smilies. While the default smilies for most boards are indeed awful, I can think of a few custom created smilies that are quite excellent.
I noticed that the buttons in the PM section are all screwed up. When I get home, I'll provide a screencap of what I am talking about. THey really clash with the layout and I think they might be a holdover from the default look of these boards.