In python empty string is false. In ruby 0 is true. And yes, ruby has both or and || but they mean different things.

I’m not saying that it isnt valid to criticize these things: first time use of a language matters, people work in multiple languages, it is good to be intuitive.

But in practice, these things aren’t problems for people who work regularly in these languages, so I personally find them to be quite low salience.

I recognize that this is sort of similar to the claims the hypothetical user of php makes in “php is a fractal of bad design”, but personally I find think the issues are of a different nature.