I believe the play_raw originated from the RT folks; I wasn’t a member at the time. Basically, someone uploads a raw with a license and we process away and preferably share the sidecar and workflow. In sum,
– CC license (PlayRaw stuff to keep in mind)
– Share processing steps
– Share processed images
– Discuss
That is what you are implying when you use the play_raw tag. Of course, you may just want to talk about noise. We still prefer you release a license if it is your photo for your and the forum’s “protection” (i.e., we would know what to do with the image and how to share it).