I don't tell anyone I know about Black Hat World for three reasons:
- I don't know many people who are interested in making money online.
- The few people I do know are idiots.
- I'm a moderator here.
In the case of the first two, I'd rather not invite people here who wouldn't make the community better. However, in the case of the third reason, I could end up straining personal and business relationships if I have to take action on the people I invite here.
If I knew people who were interested in IM, wouldn't be problematic, and would be a good addition to the community; I'd probably invite them without letting them know I moderate the forum (but then again, they'd recognise me by my picture). I'm pretty sure having another moderator penalise them on my behalf would be a good solution to that issue, but I'd rather not go through that hassle.