Why is MM Tribe Wrong?

I asked this question once in a different thread but wasn't taken seriously. To be fair, it was a bit off topic, so I'm making a thread.
I'm not trying to troll here, so please be serious if you reply.
I'm new to this game. I just got here a few weeks ago and was attracted by the sandbox format and the item based leveling/skills. I'm a big fan of Minecraft, so I thought this game, a crafting MMORPG would be a lot of fun. It has been a lot of fun. But I'm also a little nervous about the PVP aspect. I've never played PVP, but from what I've heard, it can get pretty brutal and anarchic.
So, I was a newbie wandering around Boston... and not knowing what it means to step off the Boston claim, I was pretty easily lured off by Chief and KOed. (He does this a lot, I hear) I was then told I would live if I got on the MM Tribe Vent and say that Totally Moo is Totally Hot. Totally Moo, IS totally hot, I've since seen his picture on the picture thread.
So, I got to live. Getting back on topic, I was told about the reservation and the rules, which have been set out now as a clear Treaty. And to be quite honest, I don't see a problem here. Granted, my experience is limited, but given a choice between anarchy with a good chance of being murdered by a random raider, and a political system set up by the players with laws and repercussions for things like murder and theft, I'll gladly pay the tax when I get my own homestead.
My question then, is: Why is everyone so angry with what the MM Tribe is doing? Why is it being called 'against' the intent of the game? What, exactly, is the intent of the game? Is it meant to be an anarchic murder fest?
I'm not trying to troll here, so please be serious if you reply.
I'm new to this game. I just got here a few weeks ago and was attracted by the sandbox format and the item based leveling/skills. I'm a big fan of Minecraft, so I thought this game, a crafting MMORPG would be a lot of fun. It has been a lot of fun. But I'm also a little nervous about the PVP aspect. I've never played PVP, but from what I've heard, it can get pretty brutal and anarchic.
So, I was a newbie wandering around Boston... and not knowing what it means to step off the Boston claim, I was pretty easily lured off by Chief and KOed. (He does this a lot, I hear) I was then told I would live if I got on the MM Tribe Vent and say that Totally Moo is Totally Hot. Totally Moo, IS totally hot, I've since seen his picture on the picture thread.

My question then, is: Why is everyone so angry with what the MM Tribe is doing? Why is it being called 'against' the intent of the game? What, exactly, is the intent of the game? Is it meant to be an anarchic murder fest?