This entire "PK Ban" issue stems from the fact that support entertains tickets like this in the first place. GMs should be more active on the forums and these types of tickets should only be through the forums. I lived through the fake report era of rohan its one of the things that made me quit this game because support was compromised by a bunch of people copy-pasting the same ticket over and over.
If a player has a suggestion: Post it to the forums so it can be reviewed by your fellow rohanians.
If a player has an issue with a certain player: Post it to the forums so you can get multiple sides to the story.