“…Every day, people use millions of online communities to get the news [25,71,74], for support [1,3,20,21,62,63,72], for entertainment [12,46], to discuss with others [16,68,78], to compete with others [2,60], and many other purposes. Some aspects of communities have been tied to specific societal harms, including distribution of misinformation [4,34,39,40,69,79], harassment and bullying [10,11,38,44,50,51,53,70,76], and increasing polarization [7-9, 28, 33, 61]. However, a recent survey of reddit users found that the academic community has focused relatively less on the broader values that still are of great importance to community members, such as quality of content and diversity of the community [75].…”