HN has too much tolerance for this 1000% totally bogus intellectually insulting rhetorical tactic. It demeans everyone.
The people writing these idiotic "you must be a shill for {Microsoft,Mozilla,NSA}" comments think they're clever, but what they're really saying is "not only do I not understand what the Fundamental Attribution Error is, but I can't even comprehend the idea of someone disagreeing with me or even presenting a fact or idea that challenges my preconceptions; no, it's much more likely that this is a bad faith comment than that I don't know everything there is to know about every topic".
And then other people cheer them on!
There is no online community anywhere on the Internet less capable of spotting a shill than Hacker News. Any competent shill could immediately see how to game the site.