#1 - March 8, 2017, 5:04 p.m.
Of the players affected, many were members of top raiding guilds. We want to be clear that everyone we’ve taken action against had illustrated full knowledge and intent to violate the Terms of Use. Going forward, in order to ensure fair play and competitive integrity, we’ll be monitoring these activities much more closely in order to make sure that the rules are being followed. This includes selling services for real money, account-sharing, and other violations.
More info here
http://www.mmo-champion.com/threads/2181154-Top-Player-Bans