I'm a player.. just want to answer question no 2.
i think i'm the most suitable candidate to comment this..
5 years playing various private server..
the reason i change to others server :
1. Connection problem, include = lag, long loading time etc..[ u need fast vps ]
2. Unfriendly Admin and GM staff's, the main reason why i change to other server..
3. Lack of communication between staff's and player.
4. Imbalance donation item.. if someone donate and suddenly got imbalance stuff, i quit..
5. Lack of quest, quest item and events..i'm very happy if custom event handled by staff..
6. No new change's, tht's mean the server is not introduce new quest,new items etc..
I hope you guys the server ppl need to survey ur player itself to know what they want and what they dont want..