Also, am I going crazy or do the "comment" and "share" buttons under the header just tick up but don't allow you to actually do anything? This feels like a vibe-coded website but it could be Firefox being weird.

HeyHey. The website uses Ghost right now, and a lit based web components catalogue. Some features are not yet entirely carved out. The commenting system being one of them. Components are ready, but some integration work has to be done. We also want to enable highlighting stuff directly, so people can comment on specific referenced stuff...

The commenting APIs in ghost are a little obscure.