It's one board. On 8chan, not halfchan.
They can simply make a new one, as we did multiple times before.
I'm not simply dismissing the possibility of there being a problem, I'm just not seeing a problem here yet. Don't know the rules, and I never lurked /b/, even before the migration, so I'm alien to what's changing there exactly.
I know it's chaotic, I know almost everything goes there. But knowing only this much is still too little to know what these new rules mean to the board.