Apparently there is simply no steady money in roulette programs. All programmers end up leaving. It is safe to say it is a pattern quite visible since the days of Tiago and former programmers. If programmers found it profitable they would not leave it.
But we must understand their point of view. If it costs mental effort without sufficient reward, there is no long-term incentive. I sometimes have wondered if there is a job position as a programmer of methods, but I have my answer on this fact of abandonment.