Anyone saying that DRK fucks the miners is a degenerate (entitlement complex, pure scum). Miners are useful, to an extent. That doesn't mean that they are owed the world.
Don't let the trolling get to you. Just whip out the anti-troll spray and remind them in a gentle way that Masternodes are a part of the technology that makes DRK so useful and they will come off looking stupider while you come off looking like a genuine supporter. Replying to trolls and genuine inquiries, you are representing the DRK community and you should do it with honor and grace.