@baldur I definitely agree about the bad management part. I just don't see enough evidence that Singer is in fact some kind of right-wing extremist. I started following him after Shape Up, and a lot of his writing is quite obtuse and hard to understand, so my assumption is that he was misunderstood.
So if through a series of misunderstandings, a lot of people start believing their colleague is a right-wing extremist, but you're sure he's not, what should you do as a manager?