While not caving on plenty of others. E.g. errors when a wildcard can’t be expanded (because it is not meant as a wildcard) and you have to explicitly quote. Or (subcommand) instead of $(subcommand). There are more cases I frequently encounter.

Infuriatingly, fish knows what I meant, as the error tells me what to do instead. But it won’t do it for me and prefers to lecture me instead.