I have not gotten into facebook, and therefore not hooked, and therefore can possibly be more objective –
My father used to never want to be listed in local jewish-only directories, as he felt that it makes it very easy for an anti-semite to target jews by just getting his hands on a copy – he would have the entire jewish community in his hands.
While I felt that was a bit paranoid for a small out of town community (and it wasnot available on the internet), even though it was an interesting point, I do VERY MUCH feel that way about facebook – any freak can get info off the internet, and even if they can’t see your personal details, they can get all the jewish names (as most people’s facebook names are their real names) just by typing in a jewish name, seeing the names of their friends, then going to each friend and seeing their friends’ names etc etc….it is quite a scary prospect to me. and to go on anonymously (which I have succeeded in doing) works, but kills the whole point of facebook, as your friends won’t generally approve an anonymous no-info name as a “friend” since they won’t know who you are!
Especially as our galus unfortunately seems to be getting more and more anti-semetic and the world gets so small on the internet, you never know who might use info against us c”v…