Even if we had #72 to page-load the room with a stable URL, it still probably doesn't make sense to change the URL around as you scroll. The content on the page should be consistent with the URL.

UX problems

One person's link will not look like the other once they start scrolling

Because we change the URL as you scroll around. Someone may link a page expecting all the same messages to be there but it will actually only be the current day they're scrolled to plus whatever is above it.

-- #71

It will probably also affect how search engines index the site attributing messages with a certain URL that when visiting will be missing.

I think it does make sense to still change the calendar and text around to make it easy to jump to another day from where you're currently viewing in the surrounding context.