find some projects that could use sponsorship via github sponsors or patreon or something else -- that's a far more useful way to give back

Ask HNers where they suggest you donate to do the most good.

Please, it's a personal preference where I wish to spend my money. I'm not doing it for "the greater good".

you don't learn a lot from YC, you do from HN content, they use their userbase to promote their products

we, the users, are the ones responsible of you "learning a lot" by submiting content, and reacting to it, therefore take my suggestion, since i contribute to that too, if you wish to "thank the people who make you learn a lot"

educating people, that's what i am trying to achieve, whether you understand or not, i won't stop

I'd just say that I don't have anything against anyone or any suggestion and I respect you for putting your words out. And I'm very thankful for what people do here.