Mr_Yooj, also know by his past account Boo_24_7 is a GameFAQs user who frequents the Super Smash Bros. for Wii U board.
Mostly a lurker, Mr_Yooj does make the occasional topic, only for it to die off quickly, and makes the occasional joke post in random topics.
Mr_Yooj did host a Rate the Stages topic series back when the board was first created. It lasted for roughly 110 days before being discontinued. Other than that Mr_Yooj has done little to contribute, but still hangs around to see other people's reactions to the going ons in Smash Bros. news.