The exception dialog isn't of much use as a developer. What would more useful would be a stack trace or a description of what you are doing at the point where the program crashed.
Spammers are everywhere. Guards are up (anti-spam tools, registration restrictions), but short of having people monitor the forums, we're going to have to live with it. I'm the only one doing any development (and in my spare time) so things like this would have to happen.
Unless you'd like to volunteer to moderate the forums?