@Alan Brown - jumping bail
Actually the sentencing guidelines are a lot richer than "has he done it before?". Have a look at https://www.sentencingcouncil.org.uk/wp-content/uploads/web_Fail_to_Surrender_to_Bail.pdf - a case is assessed as causing the highest pre-trial harm when it grossly interferes with the course of justice, e.g. by delaying a trial so much that witness memories become unreliable. Since Assange shows every sign of running all charges beyond the Swedish statute of limitations he surely satisfies this criterion.