Wait, I'm confused (happens easily, I know).
The person who asked you for feedback about Khaos put you on a FB page and a Do Not Sell list?
Or Khaos' breeder did this?
If the former, that's a shame, and if the latter, that is beyond despicable and says far more about her than about any puppy buyer.
If one is not allowed to speak one's truth, then what kind of world are we building?
I have heard, many times over the years, of folks too afraid to speak out about their breeders--not speaking to any one situation, just in general--because they someday want another Doberman puppy, and fear reprisals and being "blacklisted."
It's such a heavy and terrible responsibility, being able to post to DNS list and DNA list...those who do so ought to really weigh that decision carefully and with the utmost transparency.
I will say this:
I was in contact with 3 breeders, one wasn't going to have pups for quite the while, then there was Pamelot out of Georgia who sounded and looked very promising but also wasn't going to breed till (I think) late last year or this year, and my breeder who also said she wasn't going to have another litter for a while...so we were willing to wait.
Then suddenly I got contacted by my breeder out of the blue, telling me she had a litter "she had kept under wraps" and oh boy, red flags were flying all around, even hitting me on the head but I had waited so many years and wanted a Doberman so bad...
I was told there was one red girl, just like I wanted, but the dam's owner was going to evaluate her for show so I only had a 50/50 chance to get this girl. Then, I was told that the pup was available because the dam's owner couldn't take on a puppy at this time (came to find later out she took one of the other pups; because let's be honest, with Mocha's long, narrow muzzle, her too short tail and mismatched chest markings, she never had a snowball's chance in hell to be a show dog - but, she's perfect to me
I put a non-refundable deposit down and only after I did that, did I by accident come across the post by Ruby Slippers(?), the lady from Canada that my breeder had a beef with and in that post, is where I found out that the pups weren't nursed by their own dam but by another female. Another huge red flag, because this is something any good breeder should/would have told their prospective puppy buyers, IMO, not kept from them. Especially when one is buying said pups for $2,500.
And when I finally got to talk with the dam's owner not too long ago, she let it slip that the dam was never going to be bred again, with all these issues...then she realized what she said and quickly changed the subject.
So, lesson learned. The hard way, but learned.