I'd stumbled across him doing it within the past year or so and noted on its appropriateness, effectiveness, genius, and simplicity at some point (either via email or in a comment I cannot presently find).
I'd be inclined to agree, now that I think about it. They discovered the knot, they did not intentionally tie it. When your headphones get knotted in your pockets, you don't say "I tied my headphones", you say "my headphones got tangled".