Since we're sort of on the topic of rules...
People are slayed for RDM way too often. TTT is a game of suspicion, not proof. If you have solid proof, good for you. It's the traitors' own fault for not disposing of it properly. Otherwise, you should deduct who is the traitor through other evidence, such as not seeing someone for a while, or finding a burn mark where someone came from.
RDM shouldn't be "an innocent killed an innocent". That HAS to happen. The traitors should MAKE it happen. People should be able to take risks, that can be a benefit for both the innocent and the traitors, depending on how they take advantage of this. If I would define RDM, it would be "Killing with no reason to suspect them", "abusing killing people with minimal suspicion", and "Killing a detective". And, in some cases, "killing a person who has proved himself to be innocent, and confirmed to be innocent by a detective."
Admins and players often fail to see things from the other person's perspective. Things that look very suspicious to some, look innocent to others. For instance, I recently attacked two people, because to me it looked like they both came from the direction of an unidentified body that was killed a few seconds ago (although they took different paths). I accused them both (correctly) as traitors and killed both. However, one of the traitors (who was an admin, I can't recall who), said I RDMed because he was nowhere near the fight, and didn't even see the body. That's probably true. The thing is, people shouldn't be so quick to judge on what ACTUALLY happened, they should look at things from another perspective.
TL;DR
People are too quick to accuse people of RDM. TTT is a game of suspicion, not proof. RDM should only be for truly random killing without reason to suspect someone, killing detectives, or killing people repeatedly with minimal suspicion. Otherwise, let the game be played how it's meant to be: abusing the innocent's lack of knowledge of who's innocent and who's not.