You're more then welcome to interact in situations around you, I have never contested that point. But initiation is under different clauses. You state that as soon as I do damage to you, I am initiating a gunfight. That is inherently ruleplay.
For example: I am a civilian and I run up to you, spit on you, punch you and stare at you. By your logic, I just initiated a gunfight because I punched you and you request a PK. There is no roleplay involving you arresting me, there is no you going "what the fuck is wrong with you?" You think: okay, he hit me, time to shoot! Seemingly a commonplace problem nowadays, but regardless you are more then welcome to open fire. The issue is of course that you died, therefore you don't wake up. Womp womp.
About your other points:
1. You're watching the stream of the situation actively happening, that you were right there for. That is inherently metagame, if you are going to do that don't sit in a VC with the entire Army high command and various other persons. Kieran should know better to not do that as well.
2. I am roleplaying something, I tied up a random person and I state I'm MGD so I don't get harassed by people and I can bullshit my way out of something. Me declaring I am something is not powergame, what would be powergame would be me flashing a valid MGD badge and stating that I am MGD when I would've had no access to that material. This is simply just roleplay.
3. I sat there gunbashing you? You mean me pushing you back and then standing back on the door. I pushed you away from the door in roleplay, and you took that as me trying to kill you.
I also made the comment regarding how you sound because you sounded like a retard.