Honestly, whoever has an idea for a spam detection measure for Mastodon, and by that I do mean an implementation, get in touch with me, I'll pay for it.

I've been thinking about solutions for the past few days but the more I think about them the more they appear pointless.

#mastodev

Defining an account as suspicious when it has no local followers can be circumvented by just pre-following them, using account age can be circumvented with sleeper accounts, blacklisting URLs does nothing when the spam does not include URLs, checking for duplicate messages sent to different recipients can be circumvented by randomizing parts of the message...

#mastodev

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@gargron

check for duplicate mass messages by text matching over a period of time and if the same post happens more than x times in a row, mute the account for review and retroactively send a delete request to the duplicated posts.

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@gargron you don't need a perfect match, like 80% or so, even if it's alternating messages if an account shows a match rate of some ratio over a short period of time the account is flagged

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