@kissane Hypothetically, I can see some narrow issues. Using lists of people to block before saying something derogatory or hateful so they can't respond for example.
Thing is, this is one of those things we can't predict how it will work out until it's deployed. Maybe it will be wonderful, maybe it will be awful in some way we wouldn't have predicted. Hopefully it turns out good, having more tools to moderate your web experience is a welcome thing.
Thank you for telling us about this development!