Currently the account name that the AbuseFilter operates between the projects is defined at int:abusefilter-blocker and varies from project to project. This is a bit of a nightmare to track and as far as I know there are no precedents that a system account uses a different name on each project. For example: global rename uses "Global rename script", translation notifications use "Translation notification bot", massmessage use "MediaWiki message delivery", and so on.
However, AbuseFilter on English wikis use the "Abuse filter" name, on Spanish wikis "Filtro antiabusos" and so on. Moreover, it seems that if locals do modify "MediaWiki:Abusefilter-blocker" they can change the account name and have the extension operate under a different username.
Wouldn't it be more transparent and easy to have just one account name that the AbuseFilter extension used to perform its restricted actions on wikis where this is allowed? Wouldn't it be more transparent and easier to manage, instead of having to look at dozens of localized usernames?
Hence, I propose that rEABF uses "Abuse filter" as username irrespective of the project language as it happens with every other system account/maintenance script.