First up, remove the F word in your message (can't complain about the language in WC then use it yourself).
Now on the level of service we get... I'd love DF to have a full team of developers and support staff working 24x7 coming out with all the cools features (and bug fixes), new planes and maps that we all want to see.
But, I was Zup I wouldn't spend my money making large investments in people and time for a product that doesn't produce enough money to cover costs (I'm sure it doesn't even come close to ).
Think about the costs to run a small business, 6 servers on Azure all cost money, office space rental (I'm in a 2 man office at the moment, costs $3k per month), salaries (Zup has to eat too, unless we all ship him canned food). The loaded costs are often much higher than just the salary you pay (I've seen $180k per year for larger companies, that's ~$16K per month just to cover 1 person!).
Now think about how many people purchase their points v just slowly earn them. How much hard earned cash have move most of you invested into the game? I've personally spent ~$200 over 2 years. It's nothing given the many hours of joy I have received. Some people go to the movies every week, I play DF every day, as do many of you, but we don't pay for it.
Finally, there was the DF Elite push way back when. Not enough people put up funds to allow Zup to get the money he needed to staff DF properly. He tried to give us a chance, not enough people were willing to help out.
We are probably luck that Zup doesn't cut his losses and shut off the servers.