Well, friends, it's because Skacel chose the number to honour the 5-1 defeat of Hibs by his old club and their great rivals, and piss off lots of people in Edinburgh. New manager Peter Houston didn't realise this was the case. Apparently.
That's a pretty good way to permanently wind up thousands of people but I can't help but think it's an unnecessary way to make life difficult for yourself. Football fans are, by the majority, borderline retarded and provoking them like this is akin to poking a bees nest with a stick. If by bees nest you mean being in a night club and by bees you mean stupid football fans with a grudge. Why are there bees in the nightclub? That sounds like a terrible idea, you should get rid of the bees, man. No one wants bees in a nightclub, idiot.