THe disadvantage of a free service is that people feed at the trough like pigs--think of those repulsive "All you can eat" buffets where people pile their plates higher than common sense would ever dictate. I don't think any artist of merit is so prolific that they produce three images a day that are worth posting. I'm prepared to get flamed for saying this, but if by paying for the service it forces people to self-edit, then I'm in favor of it.