Who created this club and what are the rules about posting pics?I'm a huge collector of SPN پیپر وال and then sharing it with fans.Not my work,but will give credit if I know whos it is.

Not sure who the creator is.

My interpretation of picture posting is: admit what is your work and what isn't, give credit if آپ can remember the ذریعہ (easiest if آپ add immediately after finding), but at least acknowledge what آپ did and didn't make.