Bizarre take, it's one sentence at the top of his page of motorcycle knowledge. The average HN comment wanks on with more far useless fluff in an attempt to look smart.
Is it really that hard to accept other people holding different views? And does it really warrant a comment about how it makes you feel uncomfortable despite all the work that has been freely provided for your benefit?
I'm a stout atheist and grew up fixing a dozen or so bikes mainly learning from this site and online manuals. I owe Dan an invaluable amount and couldn't care less about his beliefs.
Try being a bit more inclusive in life, you might learn something.