PERMISSIONS.
YES
Backtagging.
Thread jacking.
Comment spam.
Troll him.
IC consequences for his IC actions.
Stalking.
Weird text quirks, Homestuck-related or not.
AT YOUR OWN IC RISK
Hugging/Touching (he'll freak out, unless you're his brother, then he'll really freak out).
Fighting (I like to figure out results of fights OOC before the actual fight happens, though, so throw me a line about it?).
ASK OOCLY FIRST
Private post hacking.
Mind reading/Empathy/Telepathy/etc.
Winning/Losing fights. I don't handwave or assume when he fights others, and I appreciate if others do the same for me and ask.
Any permanent damage.
NO
Death.
WHY?
The fighting. The fighting has gotten me in much wank, because I've found that fights without even a bit of OOC planning and talking first end in two ways for me: I get godmodded into a total defeat by the awesomeness of someone else's character, or I get called out for godmod when my character does, well, what he's supposed to do.
I'm not against letting other characters win, but not when it's not reasonable. Unlike Squalo, though, Kirin doesn't get in a lot of fights. But I appreciate it when people talk to me about it instead of assuming I'm gonna let them win just because. Or assuming Kirin will just whimper and take it without putting up a fight, even if he loses. That's not godmodding, guys.
Kirin is like a Gila monster. He's just there, chilling, doing his thing. If you pissed him off enough to start a fight with you? You probably deserve all you're gonna get, just because pissing him off is so hard.