1- Slaying during nade round is stupid. In fact, it should be fixed. The FF value is reseted too early. It should be reseted at the start of the second round.
2- Personnaly, I wait to see or hear a sorry. I always forgive when I get one, and always slay when I don't. If the guy is in the middle of fight, I wait to give time to ask for forgiveness. I'm not the only one with this behavior.
3- Most people on the server forgive TKs. We're nice people. Just don't push your luck.
4-One slay doesn't mean much. Maybe the slayer felt moody.
5-Someone who always slay will not get respected by the community.