I think the problem with this is that it "doesn't go far enough". For example having a -1 vote can easily be used to another players advantage. Seeing as your punishments are not too harsh, if I was a village announcer or something, id prolly paste my role PM N0 (against the rules but why do I care, I have an average role so its cool), take the weak penalty, and go on and try and lead the village.
Personally, if you are actually intending to break the game, id rather kill them and prevent them from continuing what they are doing, than give them a light punishment (which might not even effect the too harshly) and end up having them still do it if the benefits outweighed the positives.
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