If you block someone and then change your username, they won't be able to mention ... How do I block or unblock someone from commenting on my Instagram.... Blocking another player prevents you from receiving that player's messages, game ... Recent players or Find someone and enter the player's gamertag to search. ... To unblock a player, follow the same steps to get to the player's profile, and.... Contacting you via private message. Follow you (when you block someone, they automatically unfol