I don't see what all the fuss is about...
ofcourse, having a population that consists lagely of half-demons is not right, but let them be
some change their roles later, others don't
the people who want to RP seriously can still do it, and besides
on the chat very nearly nobody impersonates his/her character
most of the talks go about cookies/muffins, fights etc
so i don't mind if someone is half-demon, half-vampire, it just stops me from reading the personal papers