Like in this thread, we can note the irony (and worshiping) of the community, with the top comment (11 points so far) done by anewaccountname, deliberately taking a piss out of PG's essay.
The fact that people here upmod/downmod based on whether they agree rather than whether it's insightful really bothers me. I think it's the wrong incentive structure.
Likewise, it was funny that the "Funny..." comment was modded to -1. At least, I found it funny. Point being, I don't think these were rewards for groupthink, so much as rewards for geeks being clever.