Art or Commerce? Yes!
Post-Script: This brings to mind the larger issue of social media itself, which is an economic model similar to broadcast television, but one that makes the viewer also into the content creator. It's creative slavery, giving away the creative output of one's life for free, to be exploited later by others. I'd also include blogging in this category, with the exception of forms like typecasting, which have the unique attribute of being text imbedded within a graphic image, wherein to view the content is to disseminate it further afield.
Photo via Fujifilm X10. Typecast via Smith-Corona Silent.