PLURAL "abuse".

That's not true. Explicit PLURAL overrides everything. It's definately not GENDER abuse, as GENDER isn't relevant for the construction of the message in the location you're pointing out.

I am sorry, GENDER was a typo, of course I meant PLURAL. What does PLURAL do, explicit or not, in languages having no plural at all? It is supposed to do nothing. That means, explicit PLURAL statements would not be checked.