I know this is a money maker for the game but take this into consideration.

1  Active Player is stuck in dead kingdom.  He or she loses incentive because they cant move forward in the game or its no fun because they feel the are playing alone or doing all the work.

In this scenario, if the player quits, you loss all profitability from them.

2.  Some of the topics talk about players not liking the attitudes or being harrased or kingdom peace cannot be established.

This is another profit loss if the player quits and doesn't buy packages.