Let Her Cry - Hootie and the Blowfish
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Quote by Mit
You can set your Messages Privacy Settings to Only allow messages from friends. That has worked for me for a long time. I was only added to a group message once before I before I enabled it.
Note: The only acceptable exception is receiving messages from moderators and admins.
That’s a good suggestion, but too much “brute” force. It also means that some legitimate member who wants to send you a message and isn’t a friend can’t do it. There are much better ways to solve this problem (many listed in this thread) but it is a low priority for the development team.