Allow Users to Tag Spam

[John_Shaft]

In the quest to combat SPAM I've thought this would be a great idea for years, and have never seen it (or anything like it) amongst the anti-SPAM solutions.

Simply, this would allow Users (perhaps selected Users) to tag a Thread as Spam. This thread would then go in the Moderation Queue and be invisible to all normal Users until a Mod gets to check it.

Conditions could be set, such as:
Only allow threads < hours old, to be tagged
Only allow posters with > posts, to tag
Require x amount of tags before it goes into the moderation queue.

I find a few Users on my Forum sent notes about "x post is SPAM" repeatedly, and this would be a near ideal way to deal with it quickly. For a forum like mine which is small, and therefore often doesn't have a Mod present it would be ideal.

IS there anything like this?
Would anyone else be able to use it?