A few quotes:
"Cyanuric acid, or CYA, is great at protecting chlorine from the sun’s UV rays. But if it isn’t regularly diluted with fresh water, the chemical, a byproduct of trichlor and dichlor tablets, can quickly escalate to unwanted levels, well beyond the 30- to 50 ppm industry standard."
"In fact, pools using stabilized chlorine may easily exceed CYA levels of 300- to 400 ppm.
That’s where the real trouble starts."
The article is written from the perspective of pool service folks, so they aren't too hot on using liquid chlorine since it doesn't really work for once a week maintenance, but it's nice to see mainstream industry folks with basically the same opinion about CYA as we have.