Apples and oranges. You likely refer to https://news.ycombinator.com/item?id=31397137 https://news.ycombinator.com/item?id=31397137 which looked at public acti

Apples and oranges. You likely refer to https://news.ycombinator.com/item?id=31397137 https://news.ycombinator.com/item?id=31397137 which looked at public active accounts over a 90 day period. Twitter's 5% was "Twitter users who logged in or were otherwise authenticated and accessed Twitter on any given day through Twitter.com or Twitter applications that are able to show ads". Twitter's definition include lurkers while the 19+% number does not. And there are a lot of lurkers. As ramblerman pointed out at https://news.ycombinator.com/item?id=31397679 https://news.ycombinator.com/item?id=31397679 "25% of Twitter Users Produce 97% of All Tweets", citing https://www.pewresearch.org/internet/2021/11/15/2-comparing-highly-active-and-less-active-tweeters/ https://www.pewresearch.org/internet/2021/11/15/2-comparing-... .