Yeah, I didn't see anything wrong with the ad. Since Ikes came out they have been calling them silver dollars, due to being the same size as Morgans and Peace dollars. SBA's and others have generally been called dollar coins from the beginning, never silver dollars.
There are other sellers who state "silver dollar" all the time. This seller goes a little further tho and adds to the confusion to sell his coins. If you figure out a decent way to report him let me know!! I don't know that you can.