[specialist]

I read it as "when in Rome...".

Adopting any kind of quality assurance tool is implicitly buying into its "opinionated" worldview. Forfeiting one's autonomy for some person(s) notions of convention.

Rephrased: Using shellcheck is a signal to potential user's, per the Principal of Least Astonishment. No matter if either party doesn't particularly care for shellcheck; it's just a tool to get on the same page more quickly.

[ndsipa_pomu]

Yeah, there's that aspect to it as well. It's like using a coding convention - the reason behind the conventions may not be applicable for every time that you write a variable name, but I think they're good habits to get into.

e.g. I always put BASH variables in curly braces and double quotes which is often unnecessary (and more verbose), but it means that I don't trigger any ShellCheck warnings for them and it's easier to just type the extra characters than thinking about whether or not they'll actually make any difference.