So far, I do sometimes love seeing those few demonic role players that are actually decent in a group, however the usually good ones are the ones that don't have the words Demon, demonic or evil in their name, just in their bio. (At least that is the ones I've noticed.)
However I don't have a demon character whatsoever, I do titans instead, cause at least they have a bit of difference from the stereotypical "demons" and "angels" for example, titans can be both good and evil, and have fought the gods, and sometimes helped them. They have their own conscious and aren't completely evil, or good like most typical characters of those species are. Plus I love the mythology around them, it always seems quite interesting for me. However that is just my own personal opinion.~