Just to be clear - by adjuncts I'm talking about unmalted stuff like sugar and maize, as opposed to speciality malts like crystal. In CAMRA's eyes the use of sugar was symbolic of the beers they fought against in the 1970s like Watney Red, so in their view the True Believers of "Real" (sic) Ale™ could only possibly brew all-grain. And over the course of the last 30-40 years they've persuaded many brewers to go all-grain, certainly sugar is a relatively rare ingredient in new recipes of <5%.
The fact that their view completely ignores centuries of British brewing history is neither here nor there.
Crystal is a lot more complicated, as it varies so much by region, at least in traditional bitter. It's probably most used in the Thames Valley so that's what the tourists experience, whereas there's far less up north - notably with the likes of Boddington using none at all.
But yeah, most of the cask beers showing off 21st century hops tend to be pale wherever you go.
That's literally why CAMRA was founded!
But CAMRA politics is a whole other thread...
