Just going to add that is for playing on private WoW servers which mean people get away with hacking. GMs like to just mess with people for their own enjoyment and most of the servers have stupidly overpriced buyable with IRL cash items that are far better than any gear you can get normally which just means you'll be camped by people who pay 100s to play. Kinda takes away from the whole point imo. =[ But if you are just casual and like to just play to mess around these kind of servers are just right for you.
There is a site with hundreds of these private servers if you'd like to take a look its
www.wowstatus.net.