Quite honestly, I'm inclined to agree with the complaints on the buff thing, mostly because it feels tacked on and immersion breaking, not because "it ruins raiding," which it doesn't at all. I don't know of a better way of creating such spaces, though, so i can accept it for now and anticipate the other changes that come along with it that will make for better player interactions.
Also, what exactly can one do with this if you can't leave scents at all? If you get no permissions at all with it and can't leave any scents, that means you can't do anything that would require the trespass skill. (Thanks to maze for pointing that out to me.) My first thought on reading the OP earlier was to use random alts to scout open claims for goodies hiding in plain sight, but that won't be happening.
Otherwise, I like the towers. (Looks like that one is made from coal. If we put a torch to it, will it burn and light up the night?

Let's keep taking combat one step at a time. I think this was a step in the right direction. I don't think it will completely negate spruce cap zergs, but it does diminish their effectiveness a good bit. (They shouldn't be negated, imo, just not dominate the pvp scene.)