Are there specific details on how the false positives are handled? In Akismet, false positives can be correct by "Submitting Ham" back to the API so that future look-alikes get a lower potential spam rating. From what I can find about the spam tool in Community: Spam Management This feature is available out-the-box at no charge and is the most powerful tool in the arsenal. When enabled, spam management will automatically monitor the community and automatically flag content as spam, then send it to the spam quarantine. The feature extracts data from both a local (your community) and global (all Khoros communities) spam repository where the information is used to improve the algorithm used for spam detection. It won't be perfect immediately and will require close monitoring + manual correction, but this is a learning tool that adapts with each correction and will eventually stabilize with a high detection rate once it has enough data. You can make users immune from all spam grading by granting them the "Bypass automatic spam rejection" permission. It's not totally clear to me what this means. I want to believe some voodoo is occurring behind the scenes, but we see a fairly consistent false positive rate around 30% that doesn't seem to be going down over time.
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