It annoys me when I pay good money for yarn and find knots in it. I figure it can't hurt, so I take a few minutes and write to the company, expressing disappointment in the quality of the yarn. Sometimes it pays off and I get the yarn replaced. Sometimes my letter goes into the trash. (I've only done this 4 times). My letter to Crystal Palace/Straw Into Gold went into the trash, but I followed up with an email. I predicted in my LJ that I'd get a list of excuses. I was right... but I got them in a smart-ass, condescending email that included this little tidbit:
"It's lucky that you have had no other knots in any of our yarns, but they do exist and you should find an average of 2-3 knots in every 10 balls of Big Net (100 gr balls) or 20 balls of yarns that are in 50 gr balls. For you to have ONE knot in a 100 gr ball of Big Net is not unusual"
Basically, the email read like a snotty, chiding email, implying that I don't understand "quality" yarn and that I just "have to live with a few knots." (Hand to God, this is a direct quote).
Guess what brand of yarn I'm never buying again? Not actually because of the knot in this one ball*, or the possibility of a knot in other balls*. I'm never buying their yarn again because they're snotty. Yeah, I'm that kind of consumer.
*Truth is, I know that this kind of thing happens. But it's one of those things that if you complain about, sometimes you get action.