except he wasn't refusing to remove it, he just wasn't paying attention and didn't see faron's warning. now that he has heeded the warning i wouldn't be against keeping the ban in place considering he's now aware that despite the sexuality of the spray (which really isn't the reason for his ban, it's just a detail which some people just find unappealing to look at), and would probably pay better attention to what's going on in case someone is talking to him regarding his spray or something.
i would personally just remove the ban out of principle, he didn't do anything that was explicitly against the rules; he just missed a warning about a rule that was purposely kept vague because offensiveness is a very broad spectrum, i know for a fact a lot of people would find a dick and a vagina to be equal in terms of 'shock value'.
then again, there's no rule about offending people, i don't see how 'offensive sprays' could be a bannable offense, all the whilst offending people in graphic detail over the mic or in chat is a-okay, the only rule that pertains to sprays is "Sprays that are illegal as per the laws in the country where the server is located." homosexuality is illegal in some countries, but not in the civilized world (where i'm guessing the server is located). disruptive is also very cryptic, so much stuff can be argued as disruptive.