I second this suggestion. QuakeNet now has a special channel mode that stops amsgs (more accurately: multi-target messages) from being sent to the channel, but this is obviously a workaround for the real problem, which is that people overzealously use /amsg and /ame. Meanwhile, experience shows that there are many people who have absolutely no knowledge of scripts or scripting, who insist on using amsgs and - if you ask - who are often quite willing to stop spamming particular channels. At the moment, there is just no easy way to get them to do that; a single built-in command and/or a dialog would be great.
