your name is still walk my dog for 8 hours

I invited this person to my group for all of 15 minutes. He advertised he had over 1k hours, and as our group isn't so serious we didn't check him on UKN or anything. We get on to the server we're playing and we're farming together to get a starter base down when i look over and he is hitting a stone node with a stone hatchet we dropped him. He was confused as to why he wasn't collecting any stone and went to reset his game as he thought it bugged out. Long story short he either AFKs his hours or bought his account and we kicked him.