well that's all fine and dandy, but all I can see from having friendly fire on is losing population. I get msg'd constantly with people asking me to come in and deal with TKers. More so than hackers.
TBH: I like having friendly fire on. However, with all the hassle it just doesn't seem worth it. People will be assholes just cause they can.
*EDIT* It certainly ruins my fun, and makes me want to avoid the pub. Even though I love the pub.