Skin pickers unite!
Seriously, though, I too read somewhere that skin picking is a form of self harm, most notably a form of cutting.
I've mentioned my picking to both my therapist and psychiatrist and both just write it down on their note pads, so I'm thinking it must not be a really big deal. But when researching about it online, it states otherwise.
I don't have any telltale facial scars or marks, so I have no intentions of stopping or the very least curtailing this compulsion. My body does have some blemishes, but I don't feel it's from my actual picking, but just from everyday zits and oily skin. Sure, I admit that my skin picking probably doesn't help them, but hey, for me my sanity is more important.