8 Wheeler tipper trucks - invitation to all at LFGSS

I really cannot see the point of this at all. If you are approaching a lorry from behind then I would say that you should be assuming that you can't be seen until the point that you are 20 ft in front of the lorry, or you have made eye contact with the driver.

A perfectly clear comment, yet it's simply perspective no? I assume the truck is simply a hazard. Period. yet sometimes I find myself behind it. I sometimes find that I'm cycling like a dick and it hits me sometimes how big that wheel is.
So If I've been involved in accidents/collisions like many here, and still sometimes cycle like a hoon, imagine others that still feel invincible on the road. It's just another bullet point that might help.
My point is that not everyone will have your mentality of thinking, even if it IS to some degree, the correct one.
I for one, will be in the neighborhood tomorrow and have actually wondered how much a driver can see so will go along.