You know, I don't think that's irrelevant.
Popular culture has totally normalized this kind of behaviour. I am sure there are people who have watched these shows since they were teens and take it for granted that it's pretty normal adult behaviour, if a little dramatized.
Things like Friends, Sex in the City - all of these shows portray sex as extremely transactional and with few boundaries. Everyone is changing partners all the time. And it's the same or worse on television now.
In addition, children in school have been taught for years that they shouldn't be ashamed or made to feel "differernt" for their sexual desires. That everyone should be accepted for who they are which includes what kind of sex they happen to like.
It's now even a common belief that if something is a regular sexual practice among some gay men, being "non-inclusive" about it is homophobic - as with the RubberWankMan. We should all be down with anonymous chemsex as a healthy expression of sexuality.
So, yeah, of course you are going to get people who think this way, or the way RubberWankMan thought. It's what they've been taught, explicitly and implicitly, their whole lives.