Hey, ours all carry upload dates too, it just isn't included in the file name when you download it, and the Exif metadata is stripped off on all uploads (But don't tell that 14-year-old troll boy who kept posting his own iPhone foot selfies on Ariana Grande's page, 'cuz I told him he'd be easy to locate from his upload picture metadata! (:^p) Hey, it cured the problem - nothing like a good PsyOp!)
A 'big dream' of mine, though I know it's for all practical intents and purposes Mission Impossible, would be to have our photos in chronological order here, and that was mentioned in the recent article by Lauren Oyler... that our pics are in 'no particular order.' I found that a bit deceptive and/or inaccurate, because compared to most other similar sites, they are VERY MUCH in order by Celeb Name, and sortable by everything from rating, popularity, nationality or shoe size (for the true deviates, @Grik), even including one's own personal favourites. And they are *generally* in order chronologically, because uploads usually happen in 0-7 days after an event.
What screws that up is the 'Shotgun Uploaders' usually n00bs, who want to 'help us out,' so bless us with their entire hard drive of 'That Girl' from 1999 to present (and anything older than a week is very likely a duplicate). But it'd be *so cool* if it were somehow possible to order pictures by date *taken* or published. It's just not. Nice pipe dream though.