You seem to have stopped reading that thread before more info was brought to light. See e.g. https://bitcointalksearch.org/topic/m.1834763 et supra.
More germane, long ago there was a blog post -- later updated -- that charted the extra nonce value against block number for the first couple years of Bitcoin's existence. The evidence based upon monotonically increasing extra nonce, with roughly the same derivative (d-nonce/d-height) is quite compelling that a single entity mined over 960K (or was it 980K?) Bitcoins in that period, and that the same entity mined the first few blocks.
That blog might have been written by Lerner, maybe by Sirer (...damn three-named peoples...), or maybe someone else. Memory cloudy.
If there is significant counter argument, I'd appreciate a link.