8chan looks to be dead for good right now.
Remember the Q post about 10 days of darkness?
Perhaps the 10 days of darkness (8ch down) are upon us.
The 10 days will be over on Aug 15. That’s the day that Coats will be out from DNI position. Good timing?
Being down for a couple hours hardly qualifies as "dead for good".
Gab was off-line for weeks, but eventually resurfaced, with all the old content still there. It's a big job to migrate a web site from one hosting company to another, it's probably a big job to replace the stuff that Cloudflare was doing for them, for a site as big as 8chan.
If they aren't back in a month I'd say your "dead for good" characterization might be right.