We see a little bit of it on HN, but look at the comments on the Gist itself. This was also shared on /r/steam and the comments there. Or the fact that this is currently sitting at "flagged" on HN for no valid reason I can figure out.
There are a (seemingly) rather large subset of gamers that any talk of using another store is immediately scoffed at. Dare have to be critical of Valve/Steam (except for them not putting out games anymore, everyone seems to be in agreement that it sucks) and people try to pivot to all of the good things they have done as if that just makes whatever bad behavior they are doing justified.
Edit: Seriously, go look at some of the more recent comments on the gist attacking this guy and tell me there is not blind loyalty to Valve. Some of these responses are seriously unhinged.