I ran a rescue for years. I wanted ALL info. If I am placing a dog with someone I want to know who that person is, and talk is cheap. I know a man who bought numerous dogs from reputable breeders over years and his pattern was get it, raise it, show/compete, title, sell. Because he just liked the challenge. That's hard on dogs. I know another who bought two beautiful bitches from great breeders and turned them into puppy factories.Yea, that is another reason I wanted to stay away from a rescue. They want way too much info that is none of their business. Not sure how wanting to keep a dog healthier by not having it fixed at under a year old is red flag.
No dogs left my care intact regardless of age and none left without reference checks, home visits and at least two sessions face to face with me. Because it's not about your ego, it's about the dog.