A useful thing here is not just to include a unique error code for the type of error (usually numeric), but also to generate some kind of short Base32 or similar hash and print that right next to the error message while logging it to your normal back end. Then whether people send you a screen shot, copy/paste, whatever, you can easily search the logs to find the exact event that occurred.
Yes, that type of thing is pretty useful for linters. These error codes act as identifiers if you need to google them and whenever you need to configure the linter the way you like it or for one-off exceptions.
