http://4jndbnscrvmljnl3vynggebzvi5saz5gllk3iksdskgkmoq5oaqtxrqd.onion/pol/thread/39913.html
Good ones will filter bait question titles, all general threads, and so on). Plugins also exist to filter gore and porn. By this point, you should have 150 or more of all threads filtered. During high traffic shill periods, it's often higher.