After reviewing your appeal, I have decided to deny it.
Judging by the video that Jack and I reviewed, you clearly placed the tripmine in front of the player in the middle of the dancing animation and in no way did they 'run into it'. It's pretty clear you intended to (at the very least, attempt to) RDM the player; I can't say for sure if you're lying about knowing how powerful the tripmines actually are.
Furthermore, you have recent punishments that are still valid, relative to the reason for your ban. If you have any further questions, you can approach me on Steam.