I think people were afraid in case it was someone other than what we were told
To be talking to someone who is possibly (and nobody knew) an actual abuser, is an extremely disturbing thought - personally I'm not thinking it was a troll, but if itw asn't whoever it said it was, there is the possibility it was the male in the story, or another person looking for advice on how best to exonerate themselves.
We don't know, and we never will. But if there is a measure of doubt raised by those who work daily in the profession, and must therefore have a sense of whether someone sounds plausible in the circs given - and also cares enough for victims of abuse to have a job in that field - then I am very very uncomfortable sharing my thoughts and support with the poster in question.
I hope that makes some sense. I don't think it was an entirely fabricated story, just possibly - and not certainly - not all that it seemed.