This is basically address blacklisting. Regulated exchanges already do it, but in the grand scheme of things it's useless.P2P money is liberating, but it also places responsibility on the user.
Based on the past 10 years I think it came before its age. People are just too dumb to "get it".
Also, millions were stolen due to weak random generators too. Not to mention the tendency of users to throw money at any scam that promises any returns...A lot of exchange "hacks" are nothing more than the owners exit scamming.