When editing another persons photo on the forum not only should you check if you are allowed to (by the editing notice in the persons profile - unless they mention differently in the thread) but also you should take the time to explain your edit. Too often we see people say something along the line of " I got this in photoshop" and then they post up their version of the photo with their editing - however they make no effort to explain what they have done to the photo. This makes for poor communication and also means that the original poster often cannot get out of that photo enough to fully recreate the same effect themselves. Therefore the responsibility is on yourself to take the time to mention the editing software you used; the stages and processes that you used; the values and outlines for the settings etc... For example: "I boosted contrast and lowered saturation" Is a start, but its still very vague as to what you have actually done. "I boosted contrast by 10 and lowered the master saturation by 3 in photoshop" Now we are getting somewhere - you've given ideas of values and the software used so that the original photographer now has some idea as to what you have done to their shot to get your edit. From there you can of course get more technical with edits - outlining the details of layermasks you might have used; describing the changes to the curves that you performed; going over the rough order of process that you did etc..... This might sound like a lot of input, but if you are taking your time to edit a shot to help another person then its foolish to do so without also taking the time to explain your choices and your editing.