Reading half way through the post, I thought what the author going to do was to analyze the distribution of numbers in the filename, and, I don't know, maybe give an estimation about how often people take photos or videos, based on the time, country, etc. That would be an interesting study.
ironically, im glad this post wasn't about that. that would've been too typical of HN imo. why talk about metadata when you can just enjoy the data itself??