I beefed up the security of the forum by requiring email verification on all new accounts and disabling the PM feature.
I am a little mystified because I don't see a database record of you getting any PM messages, but I am sure you aren't making it up. Must be something I don't understand about the YAF forum db structure, but it makes me wonder how prevalent the problem is.
It's a bummer there are those who waste our time with crap like this.
Roger Martin
Creator and Lead Developer of Gallery Server Pro