As for Reddit licensing their data to llms, that day already arrived in 2024: https://arstechnica.com/ai/2024/02/reddit-has-already-booked...

Reddit seems to me like the worst example for this.

Reddit does not create the content on their site, the users do.

If anybody’s going to get compensated for that content, it should be the users, not Reddit. Complaining that Reddit is losing out on the monetization of their users’ output seems problematic to me. It feels like shilling for a pimp.