If I'm in the left and passing traffic on my right it's no problem. And even less of a problem to move over for people behind me catching up, but give me a break I check my mirrors compulsively and people still catch me off guard when they're excessively speeding. You're right though, lets finger wag to the person that gets passed at double the speed limit by traffic weavers. Maybe I'll just wring the bike out and not let them pass me next time, not like laws apply to anyone when they aren't enforced.