Treat your online profile like a resume -- nothing that could be taken badly. It's the nature of the medium. Your profile is a sales pitch. Sharing yourself and conveying your personality for real happens through email and in person. Cute girls online get dozens of messages each week. Therefore they're looking for every reason to disqualify a guy when he messages her. It's just the supply/demand of online dating, no sense in complaining about it.

Therefore I agree with Jon, remove anything gun-related or words like "eroticism" or anything that could be construed negatively. Save some stuff for the dates.