Those Nanex guys kick butt. Two thumbs up, as they used to say before the thin one passed away.
It is beyond unfair when one set of traders get a faster data feed than another set. "I'll take the slow feed, please. I don't mind trading off stale data and having my orders front-run."
Pilfering indeed. Hopefully IEX ends up eating these people's lunch, crushing them like bugs, etc.