There were probably too many messages being spammed in the forums, to the point where notifications were being turned off but people were still being notified about new messages. I personally feel disappointed because of all the hard work that I put in to be able to join the Legends Club. There's a new club called Users Legends Club that is moderated and prevents members from spamming messages.
legends club closed?

https://www.chess.com/club/users-legends-club
You'll just have to send a request to join to the club administrator, @Senior-Lazarus_Long.
what happened to the legends club? I saw it got disabled