I'm not sure that that's any better. Is a potential employer reading that post going to know that? Is it going to change their perception? Is it enough to balance having falsified information on your resume?
That is ridiculous. This is like saying that no one can ever say "I've worked in a workplace where I felt discriminated against", using their own name and tell how they felt, as whoa, suddenly someone could jump to the conclusion that they now know which employer the person is saying has a discriminatory atmosphere and that the person might as well have named them! Without any chance for the employer to clear their own name! This is so ridiculous it hurts.
To me, this is like me saying "I've met some pretty awful people..." and you saying "How dare you talk about my sister like that!"