Think the source is a better link:
This is what happens currently in FF:
https://pengaru.com/~vc/tmp/twitter.png
Maybe they've stopped supporting my version of FireFox on Linux, and I've wrongly assumed it's strictly the lack of js? I'm not sure if that's any better... since this browser is perfectly capable of everything needed to view tweets.
Was there an HN thread regarding this change that I missed?