>“A study of covid related Notes in 2022-23 found 97% accuracy (according to medical professionals).”

>“…relevant notes typically took more than seven hours to show up, with some taking as long as 70 hours.”

>Only 29% of fact-checkable tweets in our sample carry a note rated helpful. And of the helpful notes, only 67% are assigned to a fact-checkable tweet. This is not the kind of precision and recall figures that typically get a product shipped at a big tech platform.

> Zooming out, the picture doesn’t look any brighter. In the three days leading up to the election, fewer than 6% of the roughly 15,000 notes reached helpful status.

>“This study found that notes on inaccurate tweets reduce retweets by half, and increase the probability that the original author deletes the tweet by 80%.”