Your Message Boards are a joke
The message boards on Yahoo are a joke. This is particularly true of the sports message boards and specifically the forums to discuss games (i.e. for example Detroit Tigers v KC Royals). One of your principle terms and conditions of service and posting guidelines is not to impersonate other users. Despite this, there are individuals that create fake accounts to do just that. They pose as the actual users and make, in some cases, EXTREMELY inappropriate posts. Your “report abuse” feature is the equivalent of lip service. In this regard, when you report abuse and explain why you are reporting it, Yahoo does NOTHING. They allow the post to stand even if it is a personal threat against others. This really sucks because other users mistake the troll for the actual person using that has the screen name and avatar.
Start enforcing your own rules and start deleting the messages of people who come on to troll and to impersonate other users. It’s to the point where discussing the games is no longer fun because the trolls know they can get away with posting anything they want.