Where does manipulation start though ? For example I would venture to suggest almost every deep sky, comet and planetary image in the gallery has had undocumented processing which affects the scientific value (non linear stretch, sharpening, noise reduction star elimination etc etc). As a science based organisation though contributors should welcome challenge and be able to supply the raw data if required. (With the new website there doesn’t appear to be any simple way to make contact with other members any more though)
Pretty pictures are, well, pretty but the original data should always be easily available upon request.
For the avoidance of doubt: I keep all the subs which I subsequently process, whether or not the result is published.