This question already has an answer here:
Let's say we have user, call him "Trumpster2016". He asks questions, gives answers, perfectly correct and using appropriate language.
But his user profile picture is a Nazi swastika and his profile bio says "Thank goodness for Trump, he'll rid this country of [racial slur]s, [racial slur]s and [racial slur]s! I sure am glad I voted for him! Judenfrage Endlosung now! Blut und Ehre! Blut und Ehre!"
What should we do? Do we censor his profile?
This is an exaggerated and fictionalized example of an actual profile I've seen today. Depending on the answers I get here, I may decide on either a scaled down version of what we'd do with Trumpster2016, or to let it go and take no action at all.