Well, OK.

First, let me clarify that my point was simply that if contracts are being relegated to the role of managing agreements among individuals to perform acceptable activities, and something else maintains the responsibility for managing what activities are acceptable, then I have no problem with relying on contracts to perform that role. But it doesn't follow from this that individual contracts can substitute for that "something else."

With respect to your articulation of "the" problem, though: I agree that there are activities that it's problematic to declare unacceptable, whether we do that by governments formally passing laws or by local communities enforcing more informal social norms.

I agree that for some of the items on Vladimir's list, allowing people to be forced not to do them, or to be forced to do them, is scary in some contexts. But whether they are being forced by their government, by a foreign government, by their neighbors, or by an independent commercial norm-enforcement agency, doesn't play a significant role in how scary I find it. If they are being forced by virtue of an arrangement they willingly entered into, I am somewhat more sanguine about it, but not infinitely so.