The problem is, how do you balance PvP? Is adding nidbanes, crime buffs and just in general making any criminal action require so much effort that nobody wants to deal with that stuff anymore the right solution? Because, to bring an example, that's exactly how salem is, and the "PvP interactions" there usually aren't much more than exploiting mechanics to counter other exploited mechanics (look up judaism salem on youtube to see proof of this), and the fix to that usually ends up being adding even more dumb mechanics, to the point where the game becomes a bloated overcomplicated mess.
Now I'm not saying that's the way haven is heading, but it would seem to me like that's exactly what a lot of these "carebears" want this game to become so they can be happy with it. And fair enough, if that's what they want. It's their opinion against mine. I just enjoy a simple and straightforward (yet feature packed) game where doing one thing doesn't lead to having to fight back and forth against the game's "balancing" features. I see no fun in that, and I'm sure some people don't either. This is one thing I personally loved about the old haven (as broken as it admittedly was), that there were no such "balancing mechanics", but instead the solution to getting killed was also the obvious one, to either kill them back or just be a noob forever and deal with it.