I looked into using <details> to handle collapsing comment threads on Tildes, and ended up deciding it wouldn't work well and just went with JS. It was a long

I looked into using <details> to handle collapsing comment threads on Tildes, and ended up deciding it wouldn't work well and just went with JS. It was a long time ago now so I can't remember much specifically any more, but I think that the styling and behavior for <details> were both too limited and too inconsistent across browsers. I do use it in some other places though, like collapsing/expanding the text of text topics from the listing pages, and it works really well for that (other than the current lack of support in Edge).