What happend to the old post?
As I write this it's at position 101. I suspect that it got flagged a bunch of times by ordinary HNers who don't like the semi-appropriation of the name. It doesn't need any censorship or action from moderators - 8 to 10 flags will hammer an item way off the front page.
The teams who finish will probably have an mvp, maybe a pivot or two, hopefully some user traction. That might be enough to get to VC's in this climate. Or even just bootstrap and own the company 100%
It's also far more likely that the good teams will get sniffed out by angels at this early stage rather than giving pg a bite at the apple
Having said that you're right, I think pg will want to be close to these kind of things rather than futilely trying to kill them
What I really like about the Y-combinator name is that it is actually a really neat metaphor for venture backed / mentored start-ups. The two legs of the 'Y' symbolizing the partnership and the return value (the bottom part of the Y) the result.
Very clever, it is too neat to be a co-incidence.