Also nailed 2 out of 5, but managed a 4154 on my first go :D
It's interesting to think about the epochal details our minds use to produce these guesses. Technology like the cars/cameras/phones present (or missing), the fashion styles on the people, the quality/sharpness of the image overall, face masks in post-2019 photos, etc.
This would be fun as a team or on a stream. Theres a lot to learn from the "speak aloud" aspect of the reasoning here. Film grain. Colour. Hair. Clothes. Cultural clues. Etcetc
I got 2827 as a score which isn't that great, but I nailed the year perfectly on 2/5. Super interesting!