Feature request: disable directives in fles

[TiZ-HugLife]

For new checks and feature suggestions

• https://www.shellcheck.net/ (i.e. the latest commit) currently gives no useful warnings about this
• I searched through https://github.com/koalaman/shellcheck/issues and didn't find anything related
  • I did actually find a semi-related issue: Feature request: shellcheck -O --override-ignores #1417, but it was closed because they were satisfied by -o all, and that doesn't really seem to do what I'm looking for.

Here's a snippet or screenshot that shows the problem:

shellcheck --help

Here's what shellcheck currently says:

No option to ignore directives in files.

Here's what I wanted or expected to see:

There should be an option to ignore directives in files, or at the very least, specify directives that should not be allowed in files.

The rationale here is that KDE recently had a huge problem with a global theme that nuked a user's home directory due to faulty code. KDE could possibly use Shellcheck for automated testing of such content, and that would be fine for faulty code, but then they'd still be vulnerable to people using directives irresponsibly, like if a scripter thinks that they know what they're doing when they really, really don't. This wouldn't protect against malicious actors, but I'm not sure there's really a good way to do that.

[ITler]

I would like to share a use-case of why I see this feature being useful.

Imagine a script coder within an organization/company uses inline directives to ignore suggestions for convenience, which would lead to violating a style-guide or some compliance-motivated rules for writing scripts.
With the feature of ignoring directives in a file, a governed CI pipeline job could refer to a compliant shellcheck configuration and reliably fail on violations.