I agree with you about adding the "addictive" notice. I really got hooked on stack 'n whack quilts for a while. Even my husband was watching for good fabrics for them. He would even point out fabric in clothes and say that it is s & w fabric!
I haven't made one for a while now but I am seeing some beautiful sunflower fabrics right now that I would sure love to turn into a stack ' whack! So I think I may be doing another one soon.