The WoW Private Server world is a very big one. There are thousands of WoW private servers out there on the internet, and they vary from being copies of WoW with an added feature or two to completely overhauled WoW Private Servers with all kinds of new features implemented.
The demands for WoW private servers are high. WoW is a very popular game, and many people want to be able to play it without having to pay the monthly subscription fee. WoW private servers offer that opportunity.
WoW private servers are not endorsed or supported by Blizzard Entertainment in any way. WoW private servers are developed and maintained by private individuals and organizations. WoW private servers are not subject to the same quality control as official WoW servers, and they may suffer from frequent downtime, game imbalances, and other issues.
Some WoW private servers are very popular and have a large player base. WoW private servers can be a great way to meet new people and make friends, as well as to experience WoW in a different way than on official WoW servers. They can also be a great way to get gear and items that are not available on official WoW servers.