I understand and agree with the OP's point of this thread. It is a discussion that should be ongoing.
Most of the people posting in this have no technical knowledge whatsoever and are not admins, so to knock the idea down "because the servers are not stable" or "we just got a new one" are useless because you don't know the real situation or understand it from an engineering standpoint. Let the admins speak for those reasons.
IMO, this game is brilliant but my initial experience was hindered by being kicked offline 10+ times per session on my first few days, while having to wait in a queue. If the Blue server didn't launch around the time I joined, I may have given up on PRO for a while because I couldn't play it half the time. I'd totally be willing to donate a higher amount if it meant a better gameplay experience/stability. If money is the real issue right now, perhaps alternate ways to fund the project should be discussed instead of just saying the upkeep cost is too high.