For people wondering why, it’s because the majority of people consume content and a small minority create content. A small minority can easily be inundated by

For people wondering why, it’s because the majority of people consume content and a small minority create content. A small minority can easily be inundated by another small minority, especially when the barriers are close to 0 (creating a free account). Anyone who’s ever tried to run a subreddit quickly understands why some level of active moderation is necessary if you care about quality.