blog comments misformatted; incorrect <div> nesting?

A user on IRC reports that some comments on https://blog.torproject.org/join-global-climate-strike-20-27-september seem to be overflowing their margins.

It looks like comments beyond a certain number are no longer contained in the correct <div>?

Another post that shows this behavior is https://blog.torproject.org/browser-fingerprinting-introduction-and-challenges-ahead

I see this on Tor Browser; I haven't checked with other browsers yet. The content nesting in the HTML definitely seems consistent with the behavior though.