Yikkies are you just asking for trouble out on the roads?the prevailing normal speed on much of the 401 is above 140km/h...even when you threaten to take people's cars they still travel at that speed because even when its a bit busy, it is safe to go that speed much of the time...
going 180 periodically on a motorcycle with a powerful engine and brakes to make your way through cars, while really inadvisable from a legal standpoint, isn't unsafe or unethical if you're comfortable doing it
the solution to granny-style outrage is to learn how to ride your bike, not to wish others didn't know how to ride theirs
From @J_F reference the accident happened because a car moved into the lane of the bike, and the bike rear ended it. Bam! Done.
Drivers can barely see bikes, you want to add excessive speeds to these same drivers to have them guess or predict distances unexpectedly. That's crazy, never mind that reaction times are severely reduced in these high speed situations.
Good luck to you!