@wonk
Townies want townies to play better because they need the help
Mafia want mafia to participate more because they can't risk a lurker lynch.
and vice-versa
townies don't need townies to participate more because participation =/= ability, and in a lot of cases can be distracting. The only case where townies need townies to participate is the case in which they are contemplating lynching lurkers, which doesn't fall under the category that you placed Radish in.
Mafia don't need mafia to play better because mafia hold all the cards. Skill isn't a necessity for a mafia teammate, just "not being a fuck up".
And no,
mafia are the ones that throw out an accusation (without a vote, I might add) and see if it sticks, then if it does, they pile on top of the vote. That is not to say that that is what happened, but it is one of the mafia tools to control the town.
Townies vote and FoS and such. They say, "due to X,Y, Z, vote/FoS:X"