Oddbean

Taking the blacklist approach against spam is not that interesting, users can't be bothered to keep updating mute/whatever list, so you just become like an anti-virus company sending out definition updates every month just to stop spam.

I disagree, @Fabian, but I may be blind also. The way I see, people are used to muting (and reporting) spam from their messaging threads and email inboxes. This feature is well used across many platforms. The nature of WoT filtering means that each dataset is pulled from a given user’s entire network (of follows follows or whatever) to provide an even richer dataset than the user alone has created. Even if one user is a bit “lazy” in muting or reporting, blacklist spam filtering can still be effective. Am I missing something?