I'm in.
My only concern is Rule 4. What if the Hacker no-votes twice in a row for strategic purposes, but claims to have a viable reason? How do you determine whether a reason is viable or not, and couldn't the Hacker just lie about his reason? My suggestion would be that the Hacker can't reveal the admin investigations two days in a row.
To be honest, I don't really like implementing a modkill for palyers who no-vote twice in a row. I did that in my mafia, and a few people died from it even though they were still playing. It's not like there's much of a strategic reason not to vote, so why punish mere carelessness?