I like to use the power of the pen. When a program treats me well like Sloto’Cash for example I’ll praise them publicly.
However it works in reverse as well, when I feel a program is screwing me or treating me with disrepsect, (and I got 3 quickly approaching that point) I try and give them as much negative posts/press as possible. I won’t just come out and bad mouth them recklessly but use some of their terms to defer any potential affiliates that might be considering them.
It takes a while to build up enough anger to waste the energy on it, and it usually starts when repeated emails and pm’s are ingnored over period of time.
However, one beauty of forum posts is they’re crawled and show up in the serps, something all program should keep in mind. You never know who’ll see it.