Cyclists stay back! stickers

Saw this on the side of a massive artic lorry last night. Apart from being in completely the wrong place on the vehicle I'm not sure if I agree with the wording. I the driver can't see cyclists then surely they shouldn't be driving such a vehicle
http://flic.kr/p/o5xXCe
http://flic.kr/p/o5xXCe

if some idiot has ridden down the side of the lorry at some lights thats probably a perfect place for them to see the sticker.

its not the drivers responsibility to be responsible for everyone else on the road. take responsibility for yourself and ride where you can see the mirrors, not that hard is it?

as multi grooves said - "There are a hell of a lot of cyclists that have never driven* and have gaps in their own understanding of best practise which leads to disparate actions (naturally)."

i personally recon this is the biggest issue.