You're thinking way to easy lol.
What about all that payment or permission stuff? Are you really aware of the server side things?
You need som based knowledge of Linux/UNIX. Trust me, you won't learn that in a few minutes.
I've seen many server die. Tbh, i won't be happy, if MCSG gets closed one day, but if the situation needs it, why not?
The donators paid for the server. For nothing else. Well a few nice gadgets or something. But you donated that server still runs.