[aaronpk]

I'm guessing they do actually care about screenshots, given that they have been recently restricting the ways they allow people to display tweets.

They did change the format they used when displaying individual tweets, I'm guessing this was intentional.

[bryne]

I don't think they care about screenshots specifically, but they certainly do intend Twitter.com/.app to be the primary or only method that tweets are displayed, ever. To this end, relative dates are great.

You do have a good point that touches on the dilemma of the internet archivist, but this is certainly a problem easier to solve than the ones faced by people attempting to preserve software or video games, for example.