Plus counterclaimed the scum doc, and I don't remember his play but overall it probably wasn't scummy apart from Follow The Pirate shenanigan mislynches that were understandable from town-side.
GLaDOS had reasoning for Silver being scum that wasn't bad, but the issue is it relied on Spicer having Tracked Rche instead of Watch Silver, since the watch couldn't have been redirected- however Watch was a far, far more likely assumption of events. Scum Absorber would have been ridiculously unlikely and not worth using as a sole reason to vote him, since if you're reaching that far then you might as well just assume scum just plain had a way around his role and that's why it was lylo; sure, it could happen, but it's not more likely than the other way around.