Why not merge?
Server merging messes up the economy far too much. Multiple items can be lost during a merge, which in turn causes a huge headache not only for the player, but for blizzard also. For the group of people that do want a merge, there is also a group of people that do not want a merge.
There are also issues such as which server gets to retain its name? Do they make a new server for the merged server? Some people have been on their server for many years, and having it merged with another kind of causes it to lose its identity.
Merging servers is also a sign of an MMO dying, to some extent. Starting to merge servers doesn't look good for the game and could cause fewer players to want to start playing a game that is going to die. I don't know how Blizzard/Activision are structured but if there are investors then they would get nervous and pull out.
Personally I'd be fine with Wildhammer being merged with another server. Or at least free transfers to another server.
Please report any Code of Conduct violations, including:
Threats of violence. We take these seriously and will alert the proper authorities.
Posts containing personal information about other players. This includes physical addresses, e-mail addresses, phone numbers, and inappropriate photos and/or videos.
Harassing or discriminatory language. This will not be tolerated.