Zuck clearly put it there as a joke/Easter egg. I know it’s weird, but dystopian multibillionnaires whose life’s work undermines the very foundations of democracy around the world can have a (bad) sense of humor too.
AI datasets can be built by scrubbing web content and doesn’t require API access.
This is about making sure Reddit controls the user experience and users can’t, say, block their ads or hide Reddit awards. It’s also a cold (and short-sighted) calculation: some people are making money from our product without sharing our costs, better kill them.