Mafia: general discussions.

I'm diving deep into Mafia and suggest boosting the post count here. So, here is a topic for you.
As players know, during 92 Mafia, three active players who were hideously padding their message counters vigorously participating in discussions were killed during the night. I won't point fingers at who is to blame, but it's easy to guess. I also remember my own same situation in Doctor's Mafia; essentially, this isn't a problem of just one or two Mafias. Of course, it's important to experiment and perhaps be more loyal to some newcomers who, for various reasons, find it difficult to blend into our family, but I believe it is right to support existing active players. There may be complaints about the effectiveness of their gameplay, but they are fun to be around, which, in my opinion, is the most important thing in the game. So, two options for now.
1. Give immunity to players who have left more than a certain number of posts in the game or more than a certain number of posts per day. The weakness is that some might start posting utter nonsense just for the sake of it, but current daytime discussions are already own-brand crazy. One could analyze effectiveness, but that's harder.
2. Necromancer - simplified resurrection. A corpse can speak again for a day or several days, without a vote and ND, or the necromancer manages them. Some GMs might allow them to reveal their role and the killer's role and so on; there is something to think about here.