He has roleclaimed a role that is something scum could very easily claim. When scum tried to save weemadarthur D2, they most likely tried to pile on Salva, who seemed to almost win the vote. I assume Salva is town, yet scum had a perfectly potential target on Kalor, that was ignored. Why? Not many seemed to buy the claim D2, so that's not a good excuse. Add in the fact that Kalor said "oh I'don't love to vote weemadarthur except I wont", and I think it's pretty obvious something is up.
What makes Kalor dangerous is tha the scum can try to modif you the conversation, and make town believe Kalor is confirmed town. If that happens, town is potentially screwed.