That is very true. When the poster has made a statement which is clearly and factually refuted and reposts it, out that poster can go.
But, just being a liberal is not sufficient, just one who is devoted to actively promoting fascism.
And, in one sense, we who now call ourselves ‘conservatives’ are actually ‘liberals’ in the untainted sense of the word. The ‘liberals’ are ‘totalitarians’, but hold enough of the MSM high ground and get enough politicians to parrot them to maintain the fiction about their honest assessment of who they are.
“Liberal” was stolen by leftist totalitarians, they sullied the name, everyone hates them now, and “Liberal” is anathema.
Leftist totalitarians own “Liberal”, and etymology or history aside, I say we paint them with their failed ideology and adopted label daily.