Saying on his site that Sweden is "effectively detaining him without charging him with a crime" when Sweden isn't detaining him anywhere (he's holed himself up in an embassy in London) is the type of misleading nonsense that rubs me the wrong way.
Also claiming that the UK isn't honoring his political asylum granted by another country for purposes other than why he's hiding out (the political asylum was to prevent him from becoming a political prisoner in the US and facing what he calls a "credible risk of torture, inhumane treatment, and unfair trial" here) is also misleading.
He seems to relish in martyrdom.