Suggestion for donations.

It's not about to pay the low rate server or who pays it. If Ignis opened a server it means he can handle it and even if a basic important and needed thing, donation comes after the server enjoyability.

Otherwise, problem is for those who can't spend lot of time in games like they used to do as teenagers or before a workplace.
We will never find a match point between who wants levels and items on donation shop and who wants to keep playing and get everythings couse it wouldn't be fair for both cases.
If Y have time, Y plays and get items, levels etc. Meanwhile X cannot play 'couse of time, work, girl etc. 
So donation server wouldn't be fair for Y, totally free to play server wouldn't be fair for X which cannot play.