I can't speak for that dude, but I think I know what he means. There are very few wildcards on these lists with no hints of personal taste. It's like a machine picked all these end of year lists based on some kind of algorithm. These are the records Pitchfork and every Pitchfork wanna be site has been talking about all year. How do a couple dozen sites come up with top-25/50 lists that have all the same albums? It would almost seem impossible. But no one wants to be that guy or that website who left "x" album off or boldly put "x" album on, so they all kind of mold their taste and their accolades to what the other guy likes.
And again, this isn't a knock on any particular record or the Kendrick Lamar album, which I like. But I think I've read twenty "best of 2012" lists in the last week or two and they all read the same, it's crazy.
I feel like caring that much about is stupid. If you disagree with their list then I guess you disagree with their less and that's perfectly fine. To say they conspired with other blogs and publications on this is asinine. How would you know if the editors of this site personal taste was a fionna apple album? Come on.