Custom. There are few people on here that I know wouldn't even bother with dealings with you. There's only a few that I know of, but in such a volatile climate, I would have though everyone counts. You don't do Sky's image any favours. Maybe it's different at Sky, but if I spoke to clients or potential clients like you do I'd be gone long ago. There are numerous other traders on here that seem to be able to remain neutral and proffesional - at least most of the time. If someone goes close to bad mouthing Sky, you don't have the ability to form a proffesional response. I find that amazing for a customer services representative.
I stick my 'oar' in a lot of threads, it's part of being on the forum. I don't understand why you want to bait someone into complaining about you though - that's bizare. Maybe you feel immune. I was shocked at that post of yours a while back when you posted up someone's person info, where you claimed he had lied on an application.