I can't believe they'd make fun of you for saying that you want to adopt a dog! How does this compare to a TV? Geesh, a TV isn't alive and breathing. I think when someone is getting a new animal, they are adopting it. You are taking it away from it's birth mother, and feeding it, caring for it, and LOVING it. You are taking over as it's Mommy! There for you are adopting it.
I'm glad that you closed your account. Noone deserves to be treated like that.
Good Luck with the puppy search!