At the moment we have the following process.

1. Spam account is identified by a contributor to the project
2. Spam account is then reported to MusicBrainz for breaking ToS/being spam
3. Spam account report is then reviewed by reosarevok

The problem we have is when there are large amounts of spam accounts being created (like exhibited here https://musicbrainz.org/artist/b972f589-fb0e-474e-b64a-803b0364fa75/ratings ) then all of those reports fall on one persons head.

It'd have to be designed to avoid abuse, but I think that maybe we could move to a user account removal by comittee approach; in the same way we remove any data from the project it would require voting on.

Maybe limited only to auto-editors, or even a smaller sub-set of contributors; all with the aim of reducing burden.