It's just a random thing.
it's C1(C(C)C)C=CC(C)C=C1
(
The Alchemist king of the needlessly complicated,
Sun 23 Nov 2008, 15:26,
archived)
C1(C(C)C)C=CC(C)C=COMBO BREAKER!
(
Fishcat Difficult difficult lemon difficult.,
Sun 23 Nov 2008, 15:27,
archived)