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<blockquote data-quote="ForgottenSeer 92963" data-source="post: 978524">[USER=90863]@n8chavez[/USER]Problem with community maintained filters is that contributors add new rules but most don&#039;&#039;t remove those rules again when the websites changes or website uses other advertising tactics and or networks. That said the EasyList filters are and were the best maintained community based filters.A few years ago Brave posted some articles on the high amount of dead and obsolete rules in EasyList (they stated that probably half of the EL rules were dead/obselete). Soon after they hired Fanboy to maintain the EasyList filters for them. It took him 1.5 year to clean EL, Easy Privacy and Fanboy&#039;s Annoyamce filters. After the cleanup EL-filter was half the size&nbsp; in bytes (compared before his cleanup action).AdGuard uses automated mechanisms to check whether rules are fired (that is a better way than checking whether the URL does not return an error). Rules which are not fired or are only fired below a threshold value (I don&#039;t know their cut-off point) are excluded in the optimized filters. The optimized versions of Adguard including EeasyList filters are the &quot;best balance between protection and efficiency&quot; as [USER=52096]@Gandalf_The_Grey[/USER] posted (maintained by AG and Brave).</blockquote>

[QUOTE="ForgottenSeer 92963, post: 978524"] [USER=90863]@n8chavez[/USER] Problem with community maintained filters is that contributors add new rules but most don''t remove those rules again when the websites changes or website uses other advertising tactics and or networks. That said the EasyList filters are and were the best maintained community based filters. A few years ago Brave posted some articles on the high amount of dead and obsolete rules in EasyList (they stated that probably half of the EL rules were dead/obselete). Soon after they hired Fanboy to maintain the EasyList filters for them. It took him 1.5 year to clean EL, Easy Privacy and Fanboy's Annoyamce filters. After the cleanup EL-filter was half the size in bytes (compared before his cleanup action). AdGuard uses automated mechanisms to check whether rules are fired (that is a better way than checking whether the URL does not return an error). Rules which are not fired or are only fired below a threshold value (I don't know their cut-off point) are excluded in the optimized filters. The optimized versions of Adguard including EeasyList filters are the "best balance between protection and efficiency" as [USER=52096]@Gandalf_The_Grey[/USER] posted (maintained by AG and Brave). [/QUOTE]

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