Not really a huge PG fan, but this is what billionaires should be doing: see where a need is exists and put some of your insane wealth towards making an improvement. This why I respect Elon even though I don’t really like him; he puts his money to use, in a very public manner.
YC was investing in ways the traditional VCs weren’t when it started, and coding HN was a part of it. I doubt I’m the only one who had having a few HN tech support emails from PG.