If you would look at the postings you would find that I did not compare good and bad Canadian pilots. I did however say that I wish the Canadians had a little backbone every now and again. Just because they tripled their salary by coming to EK is no reason to fly over 18 hours just to get to NY and land on fumes.
I don't know where the discretion rules are spelled out but is it common sense not to leave your home base knowing you are going to over the duty time limit? And 18 hours to boot! What was so important that those Canadians had to go to NY?
Answer to your question is yes there are good and bad UK pilots as well.