> (they could instead not moderate or rely on third-party forums and messaging services they don't need to moderate)
Have you ever used the site? How does that work by not moderating? When I report someone for being racist, spamming or submit a game where I think someone cheated... who handles that, what forum or open service doesn't have some type of moderation and in this case were you want a seamless experience with your app as they do with chat, blog, forum and multiple daily tournaments.
Have you considered that having a pleasant, well-moderated community is part of the draw (and, perhaps, even an explicit goal) of lichess? Such things are apparently expensive to run.
Remove moderation, and hence the entire discussion forum. Why would lichess users ever want that? They might as well go to a different website, instead.
Have you ever used the site? How does that work by not moderating? When I report someone for being racist, spamming or submit a game where I think someone cheated... who handles that, what forum or open service doesn't have some type of moderation and in this case were you want a seamless experience with your app as they do with chat, blog, forum and multiple daily tournaments.