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+#+TITLE: Vegan, an anti-spam plugin for Elgg 1.8
+#+AUTHOR: Lorea Hackers
+#+EMAIL: devel@lorea.org
+
+* Lorea Vegan
+** Inspirations
+*** StatusNet
+**** http://spamicity.info/
+**** http://status.net/wiki/Spam
+** Features
+*** Spam-Killing Delegation
+
+ By default only admins can mark accounts as spammers and ban them
+ on the spot. Vegan brings that feature to selected inhabitants.
+
+*** Spammer's Recognition
+
+ Vegan smells spammers:
+ - recent account
+ - no avatar
+ - few friends
+ - empty profile
+ - abusive friend requests
+ - send private messages to non-friends
+ - posts a lot of links
+ - posts known spam
+ - posts from RBL-blacklisted origins
+ - posts a lot in combination of any of the above
+ - defines an "asocial" type that forces user into CAPTCHA mode
+ - more content filtering (URLs, federated spam reports)
+
+*** Conditional Posting
+
+ - requires solving CAPTCHA on first blog post
+ - requires solving CAPTCHA on submission if "asocial"
+ - forces "PRIVATE" posting on reported users
+
+*** Early Warning System
+
+ - sandbox reported users
+ - requires email confirmation on suspicious activity
+
+*** Hive Mind Report
+
+ - any user can flag a spammer. The more flags, and the most dense
+ the reports, the more constraints on the poster.
+ - after a threshold of user reports, spammer is flagged
+ automatically and removed.
+ - user successfully reporting spam get more trust reporting next
+ spammers, hence reinforce the anti-spam recognition system:
+ accordingly, users falsely reporting spam receive less trust,
+ and can be flagged themselves as trolls if they persist in wrong
+ reports.
+ - trolls are treated similarly as spammers, but their account and
+ contents are not destroyed, just suspended.
+
+*** Fight Human Spammers
+
+ As spammers learn to bypass registration processes by keeping that
+ part manual, they can throw in several dormant accounts and use
+ them later.
+
+ - When a spam is successfully reported, the social graph
+ of the spammer is analyzed and contacts are sanctioned (loss of
+ trust.)
+ - When an account is inactive for too long, it is suspended, and
+ requires a manual email reactivation. Remote accounts not
+ mentioning an email require admin intervention for reactivation.
+
+
+
+