I've been incredibly happy with Meta's decision to open source so much of their work. When US Senators Josh Hawley and Richard Blumenthal attacked Meta for open sourcing LLaMA I was worried they would retreat.
Yann LeCun has greatly increased my understanding of AI by being so open with his work and thoughts.
(https://www.hawley.senate.gov/hawley-and-blumenthal-demand-a...)