It feels like a lot of ideas resolve around the same principles. @askvortsov at some point tried to combine all that into a flexible framework called auto moderator.
What if we invested into auto moderator to be extensible so that it can "mark as spammer", add more metrics and metrics comparisons to do the spam tests?
- Extend Events, that can (0 or more) trigger certain rulesets, like "Posting" or "User Bio Changed"
- Extend Attributes, that can be used in the rulesets as "<Attribute> contains" or "<Attribute> is greater than"
- Extend Comparison, that can be used in rulesets as "Post content <Comparison>" like "Post content <contains spam>"
- Extend Actions, that can be used as an action on a ruleset (allowing multiple actions), for instance "Mark as spammer" or "Promote to <Group>" or "Move to Tag"
- Ability to name Rulesets
- Create a UX that adopts the Attributes and Comparisons
I know this is a massively different take on OP and what rafaucau posted, but I think this might be a very worthy investment. If this would become part of FoF in any way, I believe the foundation should also invest in this as it could become a cornerstone of every community.