Don't plaster your face all over your profiles? The early net developed around a culture of eschewing pictures and even choosing one's own name, putting the focus on the content of what was said. When one puts a picture front and center and you bring in a whole lot of monkey-sphere bullshit. Of course AirBNB gets blame for pushing users to do that, making it so that not having a picture is weird but using a picture of someone else is fraud.

It would obviously be politically unpalatable, but in a way it might be better if say AirBNB implemented support for discrimination on their platform. It's obviously something that exists, so reifying it into the formal system should make it easier to optimize away.