Maybe I'm optimistic, but I can see hardcore shitposters and other disillusioned types heading back to pre-WWW services such as BBSs, Usenet and IRC. For BBSing, I'd expect some sort of hybrid SSH/Telnet client(s) with terminal emulation and the smarts to launch image and video links with plug-ins (such as FFMPEG). I haven't checked newsreaders recently, but I can see a newsreader with built-in binaries decoding being a possibility as well (if it doesn't already exist).
It'll make such sites harder to use on mobile devices, but tbh that's probably a good thing.
See the little faggot with the paypigs and the Twitch stream
Yeah, buddy, that's his own hair
That little faggot got his own McMansion
That little faggot, he's a millionaire