All the processors I have seen gone out of business have always been because they have lost their merchant account or gotten very heavy fines. Since the IBill problem seams to be a operation costs issue at first, then they can act and downsize (quick solution), or win back some business (probably not going to happen short term, but with the right business plan + they already got the name recognition, then they can expand just as fast as Epoch... if people in this business can smell money, then they easy forgive and forget
).
We also got paid ALL money owed by Epoch, and today they are one of our main processsors! When companies/persons pull themself up from the gutter and even expand their business, then they get my respect
Processing for adult sites is not an easy game - if it was, then we would all have our own merchant accounts...