All good RobRich, I came to amateur radio from CB radio many years ago, and I will admit that I ran a full Yaesu FT-101E series station (including an FL2100B amp) on 27MHz and have no regrets, yes, it was illegal at the time, but it boosted my pursuit of further radio interest and if it wasn't for pirating 11m I wouldn't have increased my interest in radio and then become a radio amateur, like thousands of others.
I gathered that these people are running the Full Gallon, plus more, huge signals, huge ego's and not much real conversation. There used to be an American fellow on 26.850MHz AM for a very long time, callsign was Jump Start, haven't heard him for a long time, he was a huge signal on AM. What really surprises me that some of these huge signals claim to be operating from a mobile too.
Have a listen to 27.005MHz AM for the Japanese CBers, like the boys over your way there are some big signals there too. As for the high powered CB base stations in the USA, I would hate to see the electricity account each month...