My revenue at Sedopro is doing better than most other providers, opposite that of Acroplex, but I have no reason to doubt what he is saying is true about his declining revenue, simply because there are many factors involved when evaluating the performance of domains, using a variety of providers.
You also have to acknowledge that Sedopro has more problems than most other providers, the complaints on this forum are not without merit, I believe that most Sedo users enjoy many of there functions, such as their powerful utilities providing a wealth of information, enabling the user to correctly optimize there domains, but were also looking for major improvements, venting here on this forum is one powerful way of accomplishing that.