I've seen plenty of posts written with the pretense of support, but that were actually cruel beat downs of a person in distress. The usual scenario has the OP struggling with therapy and questioning this or that, and then a series of replies advising them to get their s**t together, try harder, get over it. This is framed as "supportive" because it advocates continued therapy at any cost, which is presumed to be the noble and righteous thing. And then if someone steps in and backs up the OP and says hey maybe this therapist is an idiot and the OP is justified in being upset and maybe they ought to stop therapy, that post will be deemed unsupportive. It's all subjective. Many so called helpers are actually perps.