Not answering emails strikes me as a weaker charge than professional misconduct, but the more important point is that no internet comment should count as a "strong" accusation, unless by "strong" you mean "intense". Such comments are always—basically without exception, in my experience—carefully crafted to leave out any detail that would reveal the other side of the story. We all know how dramatically different the story appears when such details trickle out later, as occasionally they do; and we all know how by then, the dramafest spotlight has usually moved on.