I don't know, I did not go through the list and look at it. Based on the following quoted comment he is also adding people to the list for personal reasons, so maybe Rollin.io made it there that way.
Since I feel your posts about the matter falls into the "simple minded hissy-fit" category, you will be ignored as well on a more personal basis. I probably won't take the time to remove you from the list on the next update. Sorry.
But more likely he added Rollin.io because they have the same advertisement that they are paying other people to use. Or simply because they are paying people for signatures.