Salvaging has been no doubt a great addition to the game.
And there have been changes already, like the requirement to know how to build what you want to salvage, which is good.
There area though some things about it, that may be a bit off.
I know, for some of this, the situations where it applies may be few, but it's still something that should be considered.
Mines:
Due to being unable to secure anything in a mine with a claim, and the claim covering the mine not counting for the inside, anyone being able to get inside a mine has the option to salvage everything inside.
Now you say, just properly secure your mines, and otherwise you'd need greek fire to destroy anything in a mine if you need to... well, I liked it better that way, so that's that.
Walls, houses and structures in general:
If found without a claim, any of these otherwise highly resilient objects is gone within a few seconds if someone feels like it, I'm not saying it's gamebreaking but it feels odd.
All the free loot:
Once JC said that free loot is a bad thing, but now everything not on a claim is free salvage and free loot, and if you break into a common small or medium claim and destroy the claimstone, the base itself turns into free loot.
There are more things to this surely, and none of them is really game breaking, but as I said, it feels odd, and it turns a lot of things into free loot.
So what would be a good course of action?
I'd say:
Allow salvage only if it's on a claim, be it pclaim or tclaim, in addition to the requirement of it not being a crime.
This way you need to invest at least a bit if you want to get something.