"First is free?"
As of now, posts on art or texture shops asking if the first request/purchase is free are prohibited. Sellers are permitted to offer this type of promotion if they would like, but anyone asking if they can have the first item for free will be infracted.
Giving away the first item for free is not, as some of you seem to think, some sort of tradition here. Anyone asking for a free item is begging, and this is no exception.
Moreover, the practice of asking for the first item free has a tendency to cause confusion and overall bullshit, as seen in posts 1-24 of this thread.
Discussion of this policy change can be directed to the Market Squad's Policy Discussion thread.