[throwaway984393]

People talk about Bash quirks as if Python and Go don't have plenty of quirks that you also find out by trial and error. The difference is, most people hardly ever use Bash. If it were the reverse and people hardly ever used Python or Go or JavaScript, they'd be talking about how quirky those languages are. (They already do, in relation to other languages)

Shellcheck has dramatically increased the ease by which you can write decent scripts before ever running them. But I also have never seen any language that anyone could master without a year or more of constant use.