What a waste of energy (money/resources)... Scraping and AI-scanning 2 million photos to identify animals in the advertisement pictures? What's the point. As an exercise a sample of 1000 photos would've been enough. As a database, knowing a listing has a cat in the picture or a funny review doesn't offer any real value. I wonder what the footprint is of such an exercise.
How much does it cost to send a billion people an hour of video every day? Almost all of the resources tech uses is for pointless or even negative things.
What % of compute/bandwidth do you think is used for "real value"? I would guess it is well below 1%.