Bill Gates' stake in Microsoft is on the order of 1%. Therefore, even when Microsoft buys a 100% stake in something, it does not mean that it is "in Bill Gates' hands".
Not the person you are replying to, but I hold the same opinion as them regarding Bill Gates and OpenAI, and I am totally fine with vaccines (vaxxed myself and would recommend it to others). What's your point?
There is a reason for why "assume good faith" and "please try to assume the strongest possible interpretation of comments of others" are a part of HN comment guidelines. Instead, you just immediately jumped to an assumption that the reason the grandparent comment author is not a fan of him is because BillG is pro-vaccines, and the author is an anti-vaxxer.
I recall the media buzz around AI back in 2015 (around the same time as OpenAI was founded). It seemed everyone was hyping Canada to be the next "AI Superpower" due to the perceived hostility of the (then next) presidential administration to academics and international talent. Especially companies like Element AI.
Yet, while Element AI fizzled out [0], it seems OpenAI prospered... right here in the Valley!