I hate being 'friended' by people who are simply spamming friends at LJ. So...
You log in at LiveJournal, then go here to the LJ Admin CONSOLE.
Type in: ban_set username
Yes, you can type in:
...all at one time!
EDIT: And for banning from communities (community moderators, take note!):
ban_set username "from" communityname
I'm so very delighted to get rid of both _eye_added_yuo_ and dildobucket (who are spam-friends-add-ers) that I feel like doing a happy dance! LOL.
I'm going to make sure I put this entry in my memories for easy access... (just in case this comes up again... LOL).