Yeah, protecting oneself through, as you put it, "online hygiene" seems the best approach, which is lamentable. On this particular matter, a couple of abuse reports were filed so we are, indeed, hoping for the best.
I do hope that LL takes action in this matter, at least when it comes to the use of their platform to proliferate these threats. But, in any event, I think it would be good for them to allow for reporting this kind of abuse. Right now, none of the categories reply.
Thank you both, Alpha and Pancake, for these considered and compassionate replies.