If I was vindictive I would do the same with Uber, UPS, Fedex, LandsEnd, Google and a whole slew of others as they all have sent me one or more multiple C&Ds. Part of the game.
I killed it with Uber as to revenue per domain (gosh I wish I had that opportunity again but no revenue source), banked well with UPS multiple times and even had a special CPA offer for them, did well with Fedex until my revenue source shut me down, Google was fun but when they came calling I shut things down fast as they have a ban hammer bigger than
@Diamond Damien, Landsend was a random domain I used when I had 400+ domains as part of a service and the others I don't recall.
As to Tracker Boats, I was just kicking a little sand in their face.