Thurott is more Microsoft-centric than Gruber, who does write about other things, and generally just not as polished a writer or open to criticizing his “side”. I think you get a certain pass on HN if you write long pieces about typography and other web miscellany, particularly if you're above average as a writer
Sure, that might explain why Thurott's articles don't make the front page and Gruber's do, but does it explain why they're completely hellbanned from HN from even appearing on the new page where people can actually see them and vote on it if they find it interesting?