First this person sent me a message that had nothing to do with the topic of this forum (like it was some kind of dating site... eew!). Now he has just sent me his phone number. It is deplorable, but I see no way to block this member from doing this.
I’ve just turned off notifications for chat messages here, but that sucks because sometimes I get real messages from the Wix team who are helpful and send messages that are on-topic to this forum.
I don’t see why Wix hasn’t made this option available to Wix Forums. It’s standard on most social sites to be able to block a member who harasses you.