Jackie, although it's an admirable effort on your part, I think you're wasting your time replying seriously to these, as they look an awful lot like robotic sales pitches:
1) the user id is of the 'randomly' generated form they use
2) the content of the message, minus the links, is nil
3) they never seem to come back using the same id

I'd just leave them for Anu; he'll delete the user altogether.