This is nice. It's really annoying to get killed especially when you're AFK and just want to level up.
I'm sure everyone who's on AFK feels the same way. That's why there are people who get revenge. I have no problem getting killed if I'm online. And there's no sense in killing sleeping characters. Where's the fun in that? How can you know how strong you've gotten if you're just going to target a character who won't fight back? Duh!