I do think that the author's post came off as somewhat precious. Saying Not compete with you, because you're a precious snow flake? was less polite than perhaps is ideal, but OTOH the author's post was also less-than-polite.
 "I didn’t want to believe your company would stoop this low. My mistake.", "rotten-to-the-core “platforms” like Facebook", etc
Far be it from me on the day after Gore Vidal died to say that snideness is always a bad thing, but the community here is fragile and simply can't withstand the free flow of vitriol.