I never ended up using RSS, but it seems a lot of others do, so perhaps this is a good idea. As for email, considering the general "success" (???) of signup boxes on websites, I get the impression (not having added such a box anywhere yet) that maybe this is the lowest common denominator solution for notifications in non- to semi-technical situations. Maybe a free email solution could be used to test the waters here, with the send rate options limited to every 1-2 months.

And perhaps infinite scrolling could be combined with history.replaceState() (https://developer.mozilla.org/en-US/docs/Web/API/History/rep...) to keep the URL in sync.