We are introducing an upcoming change called “Enable Discourse reactions by default” to gradually turn on reactions for all new and existing sites. See FEATURE: Enable reactions by default via upcoming change · Pull Request #39250 · discourse/discourse . Why? The reasons we are doing this are: Reactions are a low-pressure way for members to engage with site content, which is especially important in new communities. Because they’re currently disabled by default, admins may incorrectly assume t...