Ask me means they're afraid of being blacklisted by those who still practice safe sex.
A frequent poster bragged last month about convincing guys who listed "Safe only" to BB just for him.
PrEP has certainly changed the game but before there were guys who didn't care about HIV because in their minds it was a manageable disease.
Talk to the ones who brag about being strictly tops on here...
I'm sure it has a lot to do with personal insecurities and the influence of our society but some swear even a finger could be extremely painful.