With bitcoin noone will want to change existing history because that's a forked chain, loss of value for lots of people. With bittorrent you could possibly conv

With bitcoin noone will want to change existing history because that's a forked chain, loss of value for lots of people. With bittorrent you could possibly convince all the hosts to get rid of some malware information which isn't adding much value. That DHT malware link's interesting, thanks.