Tags for minimizing spam

[grvsachdeva]

Please describe the problem (or idea)

I was just visiting publiclab.org for seeing a feature which was recently got integrated but I came across a spam wiki in-between.I think there should be some easy way for fighting spam by introducing special tags for marking spam- which would notify moderator and admin of spam using E-mail if the user logged in or by generating the notification on moderator's dashboard. @ebarry @jywarren how does this sound?
(Like many website provide it's user option to mark content as spam, or abuse something like that)

[ebarry]

Oh interesting! I'm going to send this to the moderators group to add to the discussion.

[MayankKashyap]

I also see some peoples who put some spam messages in GSOC proposals