Exactly, it ain't rocket science. All these girls will be doing BB with someone regardless, that's why you wear the rubber

This old gem, again? Sure, every girl will have had unprotected sex with someone. Maybe a husband or partner in a monogamous relationship. Maybe even a whole bunch of porn actors, all of whom were tested.
How is that even vaguely in the same league as a girl advertising she'll fuck her customers bare, and doing it with 20 or 30 of them a week, a large proportion of whom are (by definition) the kind of guys who will be going around bare fucking every other bb girl they can find?!

Every activity carries some risk. Condoms can fail. Even OWO or RO can pass on diseases. Usually these risks are so tiny, most of us don't even worry. But do them with a girl who you already know has probably got something, and the risks increase by several orders of magnitude.
Come on man. You do you, it's your call. But don't try to mislead others into thinking there's no extra risk. Like you said yourself, it's not rocket science.