If I can't convince you I'm not a swindler greedy for your money, then maybe I can atleast convince you we're not complete idiots? If so, then consider this - earnings this server can possibly make (not guaranteed) will never pay back the time we've spent on it and are going to spend. Not with any premium price. I don't think you're aware of how much time we had to put into this and how much a programmer like Lord, for example, could make in that time.
In my opinion we've shown way more than what you say ("startup every week"). You could also test our dedication, accuracy and server's stability for over a month on a Test Server (nearly 100 people jumped in on its launch).
If Tibiantis disappears due to DDoS attacks (or other issue) you will get your money refunded, I don't see a problem here. .