@FieryPhoenix64 To get a peaceful rank, players would have to apply in the forums, like how you would apply for staff, and then a mod or admin would judge if they are able to get the rank. If a player with a peaceful rank was caught griefing, raiding or killing , they would be de-promoted from [Peaceful] to a regular player.
I see a huge issue with this. It could be abused for the sake of getting to a player's base just to raid. Someone could hold up a good reputation, or an alt with a good reputation, get the peaceful rank, get access to a base, and destroy it. Their only penalty would be losing their peaceful rank for that specific account. And then who is to blame? The raider didn't break any rules according to this. The player who got raided was under the belief this person was safe, under the belief that staff vouched for this raider being peaceful. That player would be out their entire base when they were assured by staff that wouldn't happen. The only winner here is the person who abused the system.
For something like this to work, there'd have to be a lot of restrictions and regulations to prevent abuse of the system. All in all, a lot more work for not a lot in return. There might be a small handful of people that could ever even qualify for peaceful, out of everyone who plays here. And it wouldn't be able to judge if a player is actually a reliably, trustworthy person or not. I think it would alienate a lot of good players who didn't have the rank. Of all my basemates, past and current, I could trust every last one with my life, but most of them would not qualify for peaceful rank. The point is, this system wouldn't be that great a judge of character compared to simply getting to know somebody.