I have always loved the humorous reference to the Guardian as the “Grauniad” (and have used it on LH from time to time), and I always believed the explanation that it arose from the paper’s unique propensity for typos. Not so, as I learn from Wikipedia:
In fact, the paper was not more prone than other papers to misprints but because the paper was printed in Manchester, Londoners saw the first edition printed each night. National papers in Britain at this time contained large numbers of “typos” which they removed progressively as the night wore on and they were noticed. Thus a paper like The Times would have as many mistakes in the North of England as The Guardian did in London. However, because media opinion was set in London, only The Guardian got a bad reputation.
Sure,  as they say, but it makes sense, and it made my day.