Whew! Lots of opinions on this subject. I became familiar with the doberman breed back in 1980 and have been hooked solidly since then. I adopted my first dobe in '84 who was taken from an abusive home. She was seven months old at the time, docked tail, natural ears. I worked for a vet at the time and he said her cartilidge was strong so I chose to crop her ears, which turned out beautifully. She was nearly dead when I got her, but the vet worked with me to pull her through and she was a perfect companion, loving, loyal, and protective when necessary.
My next dobe was about 6 months old when I adopted her, she had a docked tail, but natural ears, and I chose to leave her ears natural. She was also a perfect companion.
Next I chose to buy a pup from a breeder, we had her ears cropped and she was beautiful and loyal and a great companion.
My current dogs are both rescues from two different shelters, one a purebred dobe, the other a dobe/greyhound mix. The Dobe has a docked tail, but uncropped ears, which we have left natural. He was about five years old when we adopted him. The dobe mix has a tail and even though he beats me with it, I'm just happy he wags it, because the whole five years he spent in the no kill shelter, he never wagged it once. He was extremely withdrawn when we adopted him and wanting nothing to do with people. He isn't aggressive, but he pretended no one was there and would look the other way. He has come a long way since we brought him home and has a lot of the doberman personality, the loyalty, the trust, the intelligence and the love I have come to greatly admire about the breed.
My point is it doesn't matter whether they are cropped or not. Yes, I like the look of a nice crop job, but the true desire of having a doberman should be the personality. I love the breed for what's on the inside, not what's on the outside. That's purely cosmetic choice and doesn't affect the dogs personality one bit. I find people are just as intimidated at first look of my uncropped and docked dobe as they were of my cropped and docked dobe. I think just being a dobe makes people leary of them. I also don't think this is necessarily a good thing. People miss out on a great breed, because they can't get past the movies and horror stories. Breed for health, intelligence, confirmation, and safety. Most people don't realize the breed was used WWI (or WWII, I can never remember which one) as a messenger dog and to carry supplies to the troops. The stamina and intelligence of the breed to carry out these tasks is amazing. A dog doesn't have to be aggressive to be protective. They will protect out of love, which can be refined with training. And the cropping/docking issue should be personal choice, without arguing or pushing opinions on others, either way. We don't want to lose our right to these practices, but we want people to make their own choices based on their own opinions. Let's just love the breed for what's on the inside, that's the true essence of a doberman.