He lied on gaf to promote himself and his site over Durango and actively misled people as to the sort of information he was privy to. He generally acts more on side of the industry than his readership.
Polygon has hallmarks of a site set up from within the industry to influence other journalists and readers. They were paid by MS to start up; they back Internet Explorer as part of this deal; they generally talk shit and randomly advertised a Pizza Hut/Halo 4 deal despite being a US focused site. They attack peoples point of view, including readers, deleted comments, 'decided' the WiiU would never get a system update on launch day and ran about like fucking idiots to get a review out on time when it turned out it did and their review hardly used the functionality.
Fact is Polygon are a pretty bad site and I don't see it being a long term success unless the powers that be continue to support them. Its not informative and is generally staffed weakly.