ninja code! https://javascript.info/ninja-code https://javascript.info/ninja-code I get it's a list of bad practices and it's kind of funny in an "inside joke

ninja code! https://javascript.info/ninja-code https://javascript.info/ninja-code I get it's a list of bad practices and it's kind of funny in an "inside joke" kind of way but if you're reading the site to learn JavaScript then you are probably not on the "inside" yet? As funny as it is for those "in the know" would it be better as a list of "don't to X (bad examples) do Y instead (good examples)? As it is there are no good examples, just a cryptic joke.