I think tutorials just follow what's hot and what people are using, not necessarily what people have trouble understanding. Git is central to HN as a community,

I think tutorials just follow what's hot and what people are using, not necessarily what people have trouble understanding. Git is central to HN as a community, so we upvote things like git articles, and other HNers are more likely to try to learn git because of exposure. Coding projects on HN generally link to a github repository. Someone might create a new git cheatsheet tomorrow, but it doesn't indicate that nobody can understand any of the other git cheatsheets you can find in a google query. See, we also incessantly upvote the latest oneword.js "gimmick", and it'd be inaccurate to assume that these javascript weekend projects fill any sort of demand half the time just because they're so prevalent. I think the community just tends to circulate things that it uses and has an interest in.