I don't want to say something I can't substantiate, however in 2013 Yahoo rolled out the "Neo" interface to Groups that was vastly unpopular with existing users

I don't want to say something I can't substantiate, however in 2013 Yahoo rolled out the "Neo" interface to Groups that was vastly unpopular with existing users [0], and many groups chose that point to switch away. [0] https://www.theregister.co.uk/2013/09/03/yahoo_groups_neo_design_upsets_users/ https://www.theregister.co.uk/2013/09/03/yahoo_groups_neo_de...