How does it do any of those things? Provided a fork is sufficiently rare, as it should be, because the threat of a fork is enough to mostly keep it from happening - it should have minimal impact on any of those things.

You could equally say that the threat of collapse of the US government dilutes the utility, marketplace and value of the US dollar. Sure, it's true, but it's irrelevant.

Well yes, if they don't actually fork it's not a problem. If people DO and do it more than once then it is.

You're... kind of agreeing with me here.

The reason a threat of a fork works is because it had the results I mentioned.