It's possible and indeed normal to critique things even if you are not famous or notable and that's a fairly poor argument against any critic. People who never

It's possible and indeed normal to critique things even if you are not famous or notable and that's a fairly poor argument against any critic. People who never written a play or poem write critiques of Shakespeare all the time, should they be banned from doing so because they're not playwrights or poets? Likewise, it's possible for someone to manage a sports team, successfully I might add, even if they were never a top player in that sport. My point is, I don't need to be a billionaire or found a successful company to be able to critique Paul Graham's writing. I personally find it banal and would rather seek out writers who came up with novel ideas, like for example Carl Jung or Joseph Campbell to name a couple.