Would 4-ch want to compete in a competition against other BBSes? The competition will be an online vidya game bracket until a winner is decided. There will likely be otaku BBSes there you don't like, but it would worth it to win the BBS cup.
Too many of the regulars have arthritis and started gaming way back on the 2006. I doubt they'd win anything in the 21st century. They'd probably have a nervous breakdown seeing any game with 3D graphics running at 60 fps.