Yeah that's what I heard too, but I never had luck with it! When I was trying to get Genji to move, I was TT'ing constantly and ignoring him the whole time, and his friendship level was low so he never pinged me like the other villagers that I was close to. I eventually decided to just talk to him, and after a few pings he finally asked to leave 
 Good luck!
							
 If I can offer some advice, whenever I want a specific villager to move out, I just talk to them a bunch. It raises the friendship level, and sure enough they ping you to move!