The forum style needed to fit the game and tween girls taste without being too 'girlish'.
We opened up the forum for public the 18th of November and have now more than 2,000 members. Most girls are just there to play the free version of the game.
The forum is using a very well functioning spam tool - and we make some check ups in between. It looks like at least most are serious 'horse loving' members, and we can check on the game server how many of the members are playing - which is a great amount (around 200 didn't verify their accounts out of the more than 2K members).
We had various customizations done to fulfil the customers wish - for example a direct connection to the game server (game created in Unity) - which means, that when you have an account on the forum, you have the same in the game, if you get a special game-code for special items in game, you redeem them in your profile on the forum and more. The forum is also connected to amember for the shop-module.
We are still working on the forum - it's a work in progress, being developed with the very new and young community