This isn't the final action we're taking. There's more that's going to happen. Read my prior posts before commenting and/or submitting an lj_biz post:
http://www.livejournal.com/community/lj_biz/218525.html
http://www.livejournal.com/community/lj_biz/218340.html
BTW, currently there's no easy way to ban somebody unless they leave a comment on an entry of yours. There will be. For now, you have to use the admin console:
http://www.livejournal.com/admin/console/
In the box there, you type:
ban_set whoever
Where whoever is the person you want to ban. You can do multiple lines, if you want:
ban_set somebody
ban_set somebody_else
← Ctrl ← Alt
Ctrl → Alt →
← Ctrl ← Alt
Ctrl → Alt →