I would be suspicious of anyone who tries to get you to take the conversation off Oz Volvo, and anyone who has no discussion posts or comments history.
If you have doubts, DM me and tell me and tell me the @ name of the user and I can take a look at the DMs.
I think I will add a verified user thing but still thinking about how that would work. "Web of trust" model would be good (A is verified, meets B in real life, A verifies B, B then meets C in real life, B verifies C, and so on).