Every image is post processed somehow. Even in the old times, just by putting the negative into the enlarger you immediately start a post processing work to some degree. If the paper was exposed a little more or a little less the final print would look different. It would be stupid and snobbish to say no post processing is allowed, and in fact, the differenece between an amateur and a more serious amateur or a pro is the fact that the more you know the more you work in the lab as well. It is not always possible to take an image right from the start and post processing is a way to show the skills necessary to be a good photographer as well. Personally I try to do as little croping as possible and try to compose right. That increases the number of used pixels and the quality, but I do post process if needed. I am not a pro, just a guy with 37 years of serious SLR experience, including development, printing and every part post processing includes.
Actually, sometimes when "excessive" and over-the-top post processing can make for really cutting edge shots. It's really subjective lah. I can't make a stance on this because it really depends on the subject, it's content, and the context.
And oh, for thread headers, can you please put something that describes what you intend to discuss, instead of sensationalist headers such as this. Thanks.