I actually have kept up with this and agree that the UK needs to get the hell out.
Remember that the UK isn't like a fully fledged member of the EU. I don't quite understand all of it, but if they were then they'd be using the euro for currency and they are not doing this. The UK joined primarily, like everyone else, for increased trade opportunities. Other nations, the ones that suck because they can't keep their finances in order *coughGreecePortugalcough*, they joined because they saw it as a way to bail themselves out. If you recall that's exactly what happened with Greece.
The UK coughs up millions of pounds every single day to the EU. I believe they are even penalized to some extent because their economy is stronger than others. The only reason for this "penalty" is to just extract more money from them.
Make no mistake though about what this entails. If the UK does leave, their economy will suffer in the short-term, as in 1-3 years timeframe. But beyond that, if they manage it properly, they will be stronger long-term. If they leave, EU leaders will want to enact certain trade restrictions on the UK just to spite them because that's what european socialists do best. If you don't love their left-leaning socialism as much as they do, they're gonna bend you over and a$$f*ck you any way they can.