I refer you to the point made just above by " Rameses Niblick the Third Kerplunk Kerplunk Whoops Where's My Thribble?" (Really? Are El Reg user handles really getting that hard to find?)
Assange was at large in Sweden, in public, after he pissed off the US. He *knows* the US could have asked for him then and didn't, so the onus is on him to explain why he is *now* in danger of being extradited.
Meanwhile, he *has* been convicted of jumping bail (in the UK) and jumping the country (in Sweden), so we don't need to make any presumptions about the rape case before we can call him a fugitive from justice.
And meanwhile meanwhile, in his position, if he was *genuinely* afraid of being extradited, he'd clean up his shit. He clearly isn't afraid. He clearly is avoiding court. Screw him.