In the absence of any information, I believe sharing qt partners to be only beneficial to scum. When we know more, either through who scum chooses to kill or the results of our own lynches, there may be some benefit, but right now I cant imagine the information ever being more beneficial to town than scum.
Actually, scratch that. The most obvious course for scum to take in the event we shared partners would be to act to prevent the eventual formation of mason teams. IF two scum are together, and thus that pairing isnt targeted by scum, that could be of benefit to town. Unfortunately, the primary benefit of it would be to force scum to target their kills in a fashion that helped them avoid suspicion....however, that marginal benefit only acts to mitigate the downside of sharing partners, AND only occurs if scum have two members in one of the pairs.
Question: do scum kill their qt partners out of fear of slipping up, or being suspicious in their silence? Or do they let them live and attempt to manipulate them?