Actually, after engaging with Robin Carlisle, and when you've walked a few kilos in his shoes, then one can understand where this comes from.
I have me Gopro mounted on my chin guard, and I'm sending him clips, one or two each week, or as I fit it in in a busy day.
It's weaving that is the real problem as well as riding much faster than the stream while filtering or in either emergency lane.
While I've sent a lot of footage of cars doing silly things like jumping lanes without a plan or drifting while on their mobiles, I have also sent footage of mainly super bikes that weave, wheelie, stop beyond the line at intersections not before the line and other stuff I'm dead happy he tightens and enforces legislation on.
Filtering is riding in a more or less very straight line between two lanes at speeds not too much faster than the general flow - they do not have a problem with this.
Lane splitting is a crude term of filtering but it's the same thing.
Weaving, where the problem really lies is exactly that leaning the Ike L & R as you filter but going right into each lane, simply 'cos it feels so cool, and the cars cannot predict your next move.
Motorcyclists, like any other road user do have a responsibility to ride well and with due consideration of other road users.
We share the common road, common good sense suggests we treat others as we expect to be treated.
I commute 52 kilos daily on a 1200GSA, N2- R300- N1.
For some 15 years now and never yet had an event.
I filter between lanes and often overtake bikes than can ride fast in clear lanes ,but are scared of narrow gaps.
So the bike that tore off down the road from the lights I catch up and pass when we reach real traffic.
I'm in full support of enforcing all road legislation- 'cos I still wanna be posting in ten yrs time when I'm 61.
It's weaving that is causing the shit, not the filtering.
Weaving and emergency lane riding.