I'll do my best to put on the same act as Larry.
Seriously though, I understand the concern. A month or two ago, I was viciously attacked via private Email from someone who was breifly a mercedesshop.com visitor. What I think will make this legitimate and safe, is that we can all meet at a place of business, which is obviously legitimate and run by hard working folks. It's not as if we were going to join up at a bar and look for someone who fits the description of "look for the tall guy, you'll know me by the bulge of my shoulder holster under the jacket".
Tell her not to worry, we will be an extremely diverse group with our love of Mercedes in common. No axe murderers will be allowed, that's why the guy with the shoulder holster.
Have a nice weekend,