1. He bans it
2. One "moot" was then currently showing around his futaba channel clone "4chan" and not getting many bites
3. The pornography-obsessed people decide to abscond to 4chan en masse, determining the culture of /b/ and all that
4. This leads to the proliferation of fascism and other foolish ideology in /b/ and eventually to the quarantine zone, /pol/
5. Someone starts posting as "qanon"
6. A depressing number of people start believing in that crap
7. Many depressing things
e: looks like 4chan also has a banner for the occassion:
" RIP Rich "Lowtax" Kyanka
Our dad who disowned us"
which one would surmise would also describe moot. Who wouldn't disown 4chan if it was created from their actions?