Wow! The argument I've heard from questionable breeders is exactly the wording you used about the term "teacup" only being used as an example of size, so I suspect you've heard that before.
I don't understand why you are ignoring the arrests and questionable practices of your breeder, and lashing out at our members. Everyone has been helpful and welcoming. You may not want to hear it, but they are right!
Yes, we all guess on the adult size, mostly because it seems to be a priority with many. Personally I hate the emphasis on size. I cringe when the 1st question out of someone's mouth is "How Big?" and then "How Much"? When the emphasis should be on health and quality.
Your anger is directed in the wrong direction, and should be directed at the "breeder" because you paid way too much for a pet! I am a Show Breeder and have a 5 year health guarantee. My pets are priced almost 1/2 of what you paid.. yes, even for a smaller one. But I don't guarantee size.. It is just a guess, and I work hard to produce healthy, quality Yorkies, not teacups!
BTW.. Welcome to Yorkie Talk! Please stay and get to know us, who knows you may like us!