As a motorcyclist, I lane filter. I have ever since I got my motorcycle licence 3 years ago.
So far, out of the hundreds of times I’ve filtered, I’ve had two people in cars visibly annoyed to the point where one driver deliberately tried to knock me off my bike, that matter was dealth with by the police. The second incident occured two days ago, where the other driver began yelling out the window, horn blowing, then did his best to cut me off at a form one lane. He then past me shaking his head. I got behind him as I had to be in the lane he was now in, he clearly paniced possibly thinking I was trying to start something, swerved across two lanes of traffic, cutting off two vehicles, narrowly missed a bus pulling out of a bus stop.
As I understand the law, lane filtering is not illegal unless it’s done in a manner dangerous. That said, there is no actual law governing lane filtering at all.
Victoria tried to make an addition to the Australian Road Rules to make lane filtering illegal, however it was rejected by the other states. Lane filtering at traffic lights is legal in many other countries, as it has benefits to traffic flow, especially where motorcycle usage is high. When a motorcyclist is at the front of a queue at traffic lights, they’ll typically move away faster, thus letting more people get through a traffic light cycle. As opposed to motorcyclists sitting in the queue and waiting for other vehicles in front to get up to speed
Personally, I only lane filter past stopped traffic, only in between traffic lanes, never in cycle lanes, and never at more than 10-20km/h depending on space. If space between vehicles is tight, I’ll walk the bike through the queues of traffic to the stop line of the traffic lights. I then watch the lights, and take off quickly. Normally I’m through the intersection before most vehicles are even a third of the way through. So, I win, as I get to the front of the queue and move away quicker. The last vehicle through that traffic light cycle wins, as if I’d sat in the queue, my bike would’ve taken up the same amount of space as an additional car.
I’ve never hit another vehicle.