Community notes disappear, but as I understand it, it's not so simple as "group a downvoted the note away." Because members of a group are likely to agree with

Community notes disappear, but as I understand it, it's not so simple as "group a downvoted the note away." Because members of a group are likely to agree with one another, the algorithm means they their ability to affect the note will be very low. Also, those who tend to vote up low quality notes will also have their ability to affect outcomes throttled. The inner workings of algorithm is pretty interesting. From what I've seen personally, bad notes only tend to make it through early and for a short duration. Once someone retweets with more credible information that wasn't well understood at first, the note isn't able to survive.