They are essentially letting the members decide who gets deplatformed. And we all know when "list of members who are in a hate group or racist, transphobic, etc" appears the admins aren't going to do a thing about it. It's like Reddit has reached the point where they can't censor people any more so they're passing the ability off to users. This is also a wet dream for political groups and advertisers, it basically lets them silence anyone critical of them.