Why does answers allow this?

There's been some guy posting anti-christian and highly ual questions, thing is his picture/aviator has a male in another man's . How can they let pictures like that be on this sight. There is another one who has an aviator of what appears to be child and I saw an answerer with a aviator. This is offensive and not fun. What can be done about it. Are you guys thinking of leaving Answers cuz of it?