I like to pick on people anyway so I have no problem picking on someone from another D9. I usually try not to choose someone too young because they are probably still in the stage of taking themselves and their organization waaaayyyy too seriously.
I can see the issue from both sides though. I understand showing Greek Love and being playful but some people just don't have it in them and act like it's a crime. I know a Bruh who acted like it was gay for this Alpha to pick on him for having on the "wrong 'nalia." Like dude was trying to pick him up.
Self-importance.