Classic Mafia - Conclusion!

[AmadisLFE]

as you can see, no disadvantages by random killing, also, they'll most likely kill the rather inactive players first as their death will not reveal any informations for the other citizens to analyze

Correct, killing off inactive players won't reveal any informations. And theres a chance a few Mafia's will want to try to make another person suspicious by killing off the one that was acting against them or seemed to, for example Tornado said to Lynch me, and he died, possibly to make me suspicious.

The Mafia's game is to confuse the Town and win like that.