The conspiracy theories are dumb. What's true about YAFI that's no secret.
1) We came out with the Tower build, first tested out by Cambji. It is a build where one becomes dtw to steals and attacks. He was accused of botting, but surely, someone should have known assassinations are possible!
Subsequently, numerous false accusations got him banned for 24 hours, of which he was then stripped within that 24 hours.
2) We are a small force, and only our top 2 / 3 players strips. The rest of the players have allies between 20B to 2T, of which we can't even be bothered to take care of. All we need to do is to check the top few players, and give them a phone call when they get stripped.
The main strategy is how the checks are done, and how to determine between a true strip and a mere market purchase. Hint: It's about how one could make use of the different war builds to do this check, and requires a strong understanding of the KaW build mechanics to devise and come out with it.