Hello Banzai,
1. Yes, minimum donation will grant you premanent queue skip.
2. Yes, you need to do it for every account you own. Premium account = no queue.
@Your first P.S.: They couldn’t, because better servers mean more money, if they can even support 15k players. It’s nice towards people who can’t afford to pay, yes, but this si not a playground, it’s business. Right?
@Your 2nd P.S. I never played retail, but If I understood well, it was allowed there even with people paying for monthly premium, just so they can play the game. Do you really think that a private server would forbid Multiboxing? It’s money. Then again, those mboxers are blowing up the queue, making you even more depressed which is why you’ll give 10 Euros now. That’s how it works.
People might not agree with me, but even if it’s intentional, it’s completelty understandable.
Welcome and hope you’ll have fun.