Since this is pr-welcome now, I think it makes sense to share what I sent zogstrip when I told him that the fix didn’t work.
I think the problem why the link on “jeder” is not suppressed as the link on “everyone” is the fact that “everyone” was hard-coded in the check:
And in a similar way, “everyone” is also hard-coded for the warning shown below and the checkboxes being disabled:
I think it would be safest to check the ID instead. If you use the name of the everyone group based on the default language of the forum, this would still mean that the names would not match between a change of forum language and the execution of the DBConsistency job.