Reading between the lines, (get it? The double white ones?

), I don't think the OP wishes bikers that filter any harm at all, including ones that use the BW Tunnel.
Really? Strange his wording of "If you do it, you are a complete tool and deserve to come off. FACT.
" then don't you think?
All I think he is saying is, this biker in particular was riding like a muppet, putting his/her own life at risk and potentially others too.
I completely agree with this sentiment, however it's not what the OP said.
Most of the bikers I know are considerate to other road users, (to an extent it's common sense), we, as bikers are more vulnerable to injury or death on the roads than say a car or lorry driver.
Agreed
In this example/story the biker (arguably) caused a car driver to clip a curb....now crashes in tunnels, I would have thought ARE more problematic for the emergency services...access, heat/fire etc etc.
I wouldn't wish any biker any harm, in this instance he/she that was riding in this style, if said biker had come off as a result of their riding, could blame only themselves.......
Having not seen the biker causing the driver to swerve I can't comment. I have however often seen car drivers overreact to bikes filtering because they aren't concentrating in the past, so it could be six of one, half a dozen of the other. As I've said: I'm not condemning or condoning the actions of the rider. If he was riding like an idiot, chances are I'd probably condemn. The OP isn't criticising this one guys riding, he's tarring all riders who filter in the tunnel with the same brush.
If he/she got killed by following vehicles, the drivers of theose vehicles would have the horrible reality for the rest of their lives knowing that they, however not their fault, killed someone.
It's all about, time, place and common sense.