Extension:IPReputation contains configuration for allowing denying of account creations based on IP reputation data provided by iPoid-Service.

It would be more flexible if we instead adapted this logic into AbuseFilter variables (T354599: [EPIC] WE4.2.14b Provide IP reputation variables in AbuseFilter), for risk types and tunnel types. Once these exist, we can remove the account creation blocking logic from Extension:IPReputation, and allow it to be managed via AbuseFilter.

Note that we'd still want to retain some kind of logging for StatsLib (T380705).