To add to that, there's still a chance to deanonymize Darksend transactions by controlling a large amount of nodes. I don't know how you're just incapable of accepting the fact that Masternodes by nature are centralized, since they are hosted on centralized software. What exactly do you not understand.
Again, talking about something different as if I had asked something about "centralized software", when I asked
what is the most important data exactly that the attacker (realistically, only the NSA) would collect? If you can't answer that, how can you think any kind of "centralized software" has any difference to anything?