I've been told by a member that one of my old avatar's was creepy and they basically asked me if I could take it down or replace it.
Other people didn't have the same reaction as this person did to it, and I didn't feel compelled to change it straight away. I did shortly after, and that choice may have been influenced by this persons feedback. I don't think I would have done the same if I'd found someone's avatar creepy...I'd probably just try and block it out...like with my hand, while I was reading.
I don't expect someone to take down their choice of pic just because I have an averse reaction to it, but, in the case of my cousin who had a very scary avatar of one of the masks from the band Slipknot, I did de-friend him over it. I didn't want to look at it every time he decided to post something.