I will not hit the abuse button. I will simply put the Admin Moderator in my To: field.
This goes back to another thread from awhile ago.
I've never alerted a moderator before, but if personal information is revealed, I will ask to have it removed.
Flagging the Mod is the functional equivalent of hitting the abuse button. I have done that about 5 times in 5 years (where say a thread which has mostly posts that use the word "faggot" in them, without any other substantive content, or cruelly attacks someone else's religion), except for ministerial matters, where a thread is a duplicate, or has a phony headline that needs to be corrected, or whatever.
The best policy IMO is to respond to vicious personal attacks with icy silence, or if not so vicious but still infra dig, maybe with humor, once in awhile. Trust me; it works.