Totally agree with the comments above. As long as it isn't used for something like a documentary etc it should only have some minor corrections such as color correction (white balance) and don't try to pass off art as real. I've seen some comments on articles however from people who think otherwise. For example: a photographer altered the scene in a, I believe, warzone (changed the position of a body and added props) to send a message that this isn't the way to resolve things. Most of the people in the comments thought this was unethical and didn't depict the truth but there were some who said that it should be done in this case to send a wake-up-call. So I'm trying to get some insight as well to see what percentage of the people think things like that aren't ethical and what percentage think it is ethical. But the example I just mentioned is quite a extreme case though
@Venturi: yes indeed. The survey software I'm using sadly can't do that kind of questions but for most questions I've added comment boxes to try give people a way to explain their choices a bit. But I'll have another look to see if I can improve some of the questions.
About the last part: It's true manipulations have been around since the beginning of photography (if I recall correctly the first one was of Abraham Lincoln in 1860), but most people (non-photographers) believed photos couldn't be altered since they weren't created by hand like paintings were (so paintings were more of an interpretation than the real thing. this is still somewhat the case in photography of course since modifications are made to the photo to make it look like how the photographer experienced the scene. think about exposure, color corrections etc. but not as much as paintings). Even the person behind Sherlock Holmes believed a photo with fairies was real (
http://www.astropix.com/IMAGES/J_DIGIT/ETHICS/FAIRIES.JPG). That's why I described it like that in the survey.