cMultilineSpam
Born from an idea on the WoWInterface forum, I created this really tiny script.
It monitors the official channels (like General and Trade) for multiline macros. If these macros surpass a set limit of lines, all following lines will be hid without any further notice.
FAQ
Q: Is there a configuration?
A: Yep, but not in game. You'll need to open the LUA file of cMultilineSpam. There you can find the variables _limit and _updateInterval.

