You have a right to be unimpressed, but if you're taking the time to say "So what?" or "This is just a recruiting ad" then you should probably rethink. I never thought I'd say this, but the negativity here really indicates the kind of latent discrimination that so many URMs & women in tech complain about. I have literally no other explanation for it -- a senior engineer at Google could have implemented this compression and it would still be HN worthy, and nobody would be calling the blog article a fluffy PR piece.