What is mostly gone is the pay per post model some followed.
Yes and that's a good thing IMHO. The fact that I'm getting paid independent of the number of posts I make allows me to focus on meaningful stuff, which I suppose is better for the advertiser since readers are hopefully looking at the post with the signature for some time
Onkel Paul
True, but it seems the bitmixer campaign has stopped accepting new participants now, according to https://bitcointalk.org/index.php?topic=425135.msg9420092#msg9420092.