Wirelessly posted (BlackBerry8530/188.8.131.523 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/105)
KB3JQQ: You are no more likely to have an identity theft issue on FB, than you are anywhere else. You are responsible for guarding your personal information.
That being said, onto my main comment:
What I do on RR is public, and what I do on FB is non-public. (It is only available to my friends, and the admins.) RR will not be linked to my "real" life.
I do not have my identity liked to anything publicly available on RR for many reasons. To the best of my knowledge, only one (non-admin) user has my information.
If my FB account needs to be linked, so I can make comments, then I guess my comments will be to the feed suppliers, as a PM. I do not cross-link accounts. (Much like how I can no longer sign in to YouTube, as they insist on linking your account to some other site.)