Mozart currently has a rating of 1.25 stars on MusicBrainz. And I thought, could Mozart be so unpopular among MusicBrainz users? Then I see a bunch of zero-edit gibberish accounts giving him 1-star ratings. Is there a crusade against this great composer?
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Then I found that many of those accounts have given stellar ratings to this recording… 
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Must be the Salieri stans. /j
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If you don’t know what it’s about, it’s about money.
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I agree that one star for Mozart is a bit harsh. I gave him two. 
These spam accounts should be removed though.
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Should be, but there is a shortage of workers.
Just create a function that if someone gives a 1 star review on Mozart, their account gets closed. /s
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Maybe you need to verify email more often?
Or if he hasn’t logged in in a year, send a warning about deleting the account?
https://musicbrainz.org/user/antichrist
https://musicbrainz.org/user/godoftheantichrist
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I marked several thousand of those accounts as spammers and purged their artist ratings. Mozart now has an outstanding 4.65/5 (keep up the good work, Mozart!).
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How’s the work going on disabling common temporary/throwaway email providers, for signing up? Anything I can do to help? That would have made things more difficult for this spammer, at least.
(iirc we decided in a meeting a while back that it we were ok with disabling them)
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Oh, I already did that back in December. The domains used by these accounts were already blocked back then. If you find more problematic email domains and have access to this repository, you can submit a PR to add them and pester me to deploy it. 
We also started limiting the number of accounts you can register from the same IP per day, but there’s not an easy way to view these events outside of Sentry yet. (It looks like they’re targeting test.mb more than production lately, which is fine by me.)
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Amazing @Bitmap!! Thank you