SPIM
Yahoo! Messenger users are subject to unsolicited messages (SPIM) and the problem remains unresolved. Blogs and websites addressing this issue are supportive of the chat environment, and writers genuinely want to continue using the service, yet express frustration about Yahoo's absolute failure to address spam and other related problems. User queries are met with forms and replies that Yahoo is "working to resolve the problem," yet there is no evident progress. As of 2007 it is estimated that at least 75% of all users who use Yahoo chat rooms are bots. Yahoo has introduced a CAPTCHA system to help filter out bots from joining chat rooms but it has done little to actually stop the problem and has only inconvenienced human users.
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