we're getting super off topic here, but my understanding is that 'black' is actually becoming more PC and acceptable largely because many black people are neither African nor American
To those of us who are, it sounds excessively clinical, most of us dont like thinking of our sexuality in a clinical way. Also the poster is not wrong, talking about homosexuality, is cool and okay, calling someone a homosexual is often a language flag that they may be less than open minded.
This might all be true, but is there ever going to be a point where we assume positive intent? We shouldn’t be inferring deep-seeded psychological attributes in every day communication. It’s super likely that nothing at all was meant by using the clinical term.
I didnt see a lack of good faith in the discussion, it was more of a "hey, you might wanna know, that using that particular word associates you with this group you might not want association with" - which if anything is an assertion that requires good faith to make.