I've been sent to a silver hand base as a part of a random quest with my Argonian mage. I was rather surprised to face them as I have not done a single companion quest.
Then I realised something: The Silver Hand are, objectively, evil. They are nothing more than bandits with a vendetta against werewolves, possibly due to beliefs. The way they butcher them very much seems kind of cultish. This finally explains why you cannot side with them, in my eyes. They're insane bandit cultists, not organised werewolf hunters.
For a while I wondered why they were unjoinable, well now it makes some sense: They're not interested, just like all the bandits out there. The true good faction I suppose would have to be the Vigilants, as these guys obviously are not.



