It does what it says. Sometimes requires a refresh for the Twitter UI to update block changes.

Doesn't work very well

Works if you click through to a profile. Twitter is so buggy these days it might be working otherwise. Other reviews are blaming the addon but it's Twitter's janky front-end code that is preventing the UI from being repainted correctly.

Doesn't even work.

Does what it says, also blocks people in replies but their posts stick around until the screen refreshes.

This would be great, but it currently isn't doing anything for me. I still see Twitter Blue people in replies, which is the only place I'd see them to begin with.

Does what it says on the tin. Would be better if it could block without clicking through to their profile but works as advertised.