OK, I see what he's saying: stopping the lottery reduced the reward from 1000 CLAMs to 1 CLAM per block, so that means the lottery system was like a pre-mine.
The lottery was rigged though... which would be a fairly sneaky way of "premining".
Rat4 (the Blackcoin creator/what clam is forked from) allegedly did it.
He had around 30% of all the Clamcoins in existence at that point as I recall... or more.