Fight against the NSA might be futile anyway. If there is a system they can't crack into, they'll be more likely to make it illegal altogether.
But yea, people need to start favoring independent operators when choosing where to host their nodes, and preferably operators who have a dead man's switch.
The reason for the collateral being 1000 DRK is that you're supposed to take security and other aspects seriously when running one. Currently as 1000 DRK ~ $5000 and the monthly reward ~ $70 it's kid's play, but if that is multiplied by 10 or 100 things will be different as you'll begin to afford dedicated hardware, ddos protection, load balancing and whatnot. NOTE: I'm not claiming it will go 100x or even 10x, I'm just saying that if DRK/DASH is going to get the attention of the NSA or similar it won't be until it is 100x at least.
Because the NSA is the only 3-letter agency and the FBI/BKA/DEA all do not exist, ah yeah..
There are barely cases when they tried to rule something in the past (look how pgp was spread back in the day - via printed text and people who typed it back to the pc) and nowadays all cryptography is legal, that claim makes no sense, even if it would be illegal it woulnd't stop people from using it; nor would i give a fuck what the USA makes illegal as i am not their anyway..
The reason for the collateral is for sure non-sense or people wouldn't host on VPS'...
Not enough coins there.
There are for sure enough coins to have fun with the network.
Holding coins is not illegal. And if there's ever a site like SR the amount of coins there won't be enough.
The usual drugmarketplace have enough coins... SR had way more than the whole DRK marketcap. "Enough" is also a very flexible world, especially when people dump their coins after some "bad news".
You can have your masternode "stake" in a cold wallet.
I know that; doesn't stop them from hacking coins - there are enough cases in the past, tons of exchanges which got hacked etc...
TL;DR you are relying on stuff that no currency should ever rely on.