> If I make my money via porn (I don't, but as an example) do customers not want to have bank accounts at banks where pornstars bank?

It can be quite difficult for sex workers of all stripes to maintain their bank accounts. They regularly have accounts frozen because they receive payments from porn-friendly payment processors. This is not just "porn stars" but people that do things like OnlyFans.

So yes, sex workers have trouble accessing banking even if all they do is show their titties on camera because prudes go pitch a fit to banks.