Here’s another pet peeve: pretending that the fact a moral position cannot preemptively address every and all potential and prospective application of or exception to its rule means we therefore cannot actually take a moral position—which effectively is what this comment (again, scroll down) is arguing.
In truth (and as I replied in that conversation), any morality that simply leans toward shunning anyone whose presence seems still to be causing people harm is consistency enough. The rest you work out as you go. That’s life; you’ve got to pick a starting position, and not be distracted by suggestions you’ve got to work out every specific beforehand.