Question: Why doesn't yahoo control the bots in their chat rooms? 

Answer: Seems to me that the bots in the chat rooms are like spam in emails, or spyware in programs, or tracking cookies on websites; 1)over time, they get more and more technologically advanced, making them harder to stop 2)just another way for other websites/companies to gather information and/or make money.
This question from the Yahoo Q&A forum is categorized in the topic: Business & Finance