Reduce 4chan to 6 boards
/b/, /a/, /v/, /fit/, /trash/, and /mlp/.
Doing this will instantly fix 4chan.
He's got a bit of a point. The one-letter boards, the originals and second-comers should be the meat-and-potatoes of 4chan.
This glut of 2, then 3 and now 4 and 5 letter boards is where the thread got lost. 4chan became a nation instead of a city-state. And nobody on one side of a nation likes people on the other side, or even part way across it.
I think his limited boards number is too low, however, and his post seems definitely to be bait. But even this bait has a colonel of truth in it.