Sounds more like you are lost. Visited Perth once, didn't like it and now feel bound to bore the rest of the world ad infinitum with it? In my experience, which is extensive, they'll go as fast as they can get away with, WRT posted limits. Drive at 80 in a 100 limit when not constrained by traffic ?/..I think you were on a different planet. That said, they certainly are ignorant of the finer points of merging
