Objecting to “Photoshop” as degrading “photography” means different things to different people. For some, the objection is mostly about compositing. For others, the objection aims at other graphic arts manipulations. Still others object to various imaging processing that results in images outside of their various comfort zones, often more subjective than we might think. The discussion in this thread so far seems to focus on more than compositing but it is challenging to be specific about just what else might be objectionable. 1X seems to host quite a wide range of photographic images, ranging from those captured with great skill in camera, composition and lighting with limited post processing to those that challenge the edge between photography and other visual art forms.
It might help us to ask whether the idea that photographic images might be representational of unaltered reality if not processed with Photoshop might be a false premise. Making a photographic image, film or digital, intrinsically involves abstraction from reality, and the process of making such images provides the opportunity for many artistic decisions and for using many artistic techniques.
• Really, there is no such thing as an unprocessed photographic image. Photons hitting film make chemical changes corresponding to areas of light/dark/color, but you usually can’t see a picture by pulling the undeveloped film out of the camera and looking. Seeing the image typically requires processing the film to a negative and the negative to a positive. Many artistic options during that processing. Photons hitting digital sensors result in electrical impulses that get converted to strings of ones and zeros. Seeing the associated image requires processing the digital data into an image format that can be displayed. Raw files are made visible with embedded jpg images generated using the camera manufacturer’s default settings (users can change some of these). These often look quite different than “reality.” (Take a peek after setting the wrong color temperature, for example). Rather than accept the default decisions of camera makers, many digital photographers generate images from raw source files using the computer as a digital darkroom (Photoshop and other software). Many artistic decisions are possible during such processing. We are comfortable that source files need conversion to images, and we can easily forget this part of the process can involve decisions and abstractions. But some people object to particular types of processing along the way.
• The film or digital sensor can only capture part of the scene. The photographer selects the framing to include some things and exclude other things. Reality has more to see above, below, and to each side of the image edges. Selectivity about what to include often requires artistic decisions, and this selectivity is already a type of abstraction. We are comfortable with abstraction to a framed image, which makes it easy to forget that the result is already quite different than “reality.”
• “Reality” has three special dimensions plus time, photographic images are two dimensional and static. That requires another level of abstraction. We have many artistic techniques to give an impression of three dimensionality or to give the impression of passing time. We are comfortable with abstraction to a two dimensional image, which makes it easy to forget this is different than “reality.”
• “Reality” often has a wider range of brightness than can be captured on a frame of film or in one digital sensor exposure. Conversion to an image requires compromises such as letting shadows go darker or highlights go lighter than in reality, or using HDR and other techniques to compress tones in various parts of the range of brightness. We are comfortable with some of the conventions, but when processing results in appearances different from what we often see with our eyes (harsh HDR, for example), complaints about “Photoshop” begin to arise.
• “Reality” often has color, sometimes exceeding what film or digital sensors can capture in one exposure. Photographers perform quite a few manipulations to get the desired result. Filters in front of the lens, adding or removing kinds of light, selecting color space, calibrating against known standards, adjusting color for artistic effect regardless of appearance at time of capture, using specific types of film, adjusting darkroom chemicals, adjusting digital color translations.
• Oddly, sharply detailed black and white landscape photographs are often accepted as representative of photography without objectionable “processing,” whether the conversion was done in Photoshop, a wet darkroom, or by other means. But black and white represent another abstraction and is not how most of “reality” looks.
Although these points may seem trivial to some, I do think there is some value in examining assumptions and thinking about the fundamentals. My own conclusion is that making photographic images can involve a great many artistic decisions and that some use of post capture processing happens essentially universally (ranging from little to much, and perhaps sometimes "too much" once beyond some subjective threshold).
I enjoy a wide range of images produced by a wide range of software techniques. Some go far beyond what I produce (or want to produce) myself. 1x provides many images to appreciate and enjoy, as well as some that I might want to pay less attention to when they are outside of my current comfort/taste zone. But I also recognize that sometimes I learn about photography, art, or myself by paying attention to things outside of my current comfort/taste zone, so no need for me to object to such things being here.