Reddit 分为很多不同的子社区，也称为“子Reddit”，每个子Reddit 都有自己的主题和规则。用户可以在子Reddit 中发布内容，并与其他用户互动。内容的得分（投票数）决定了它在 Reddit 上的可见性和排名。
Reddit 还有一些社交功能，例如私信（direct messaging）和好友关系，用户可以通过这些功能与其他用户互动。
Reddit is the place where people come together to have the most authentic and interesting conversations on the internet—Where gaming communities, nostalgic internet forums, bloggers, meme-makers, and fandoms mingle alongside video streamers, support groups, news junkies, armchair experts, seasoned professionals, and artists and creators of all types.
With over 100,000 communities about every topic you could think of (and a few you’d probably never think of if it wasn’t for the creativity of strangers on the internet), Reddit is the place where you can dive into anything and connect with people on any topic.
A few things you’ll find on Reddit…
■ Thousands of communities
Whether you're into breaking news, sports, TV fan theories, or a never-ending stream of the internet's cutest animals, there's a community on Reddit for you.
■ Laughs, lols, and plenty of ridiculousness
Lose track of vast amounts of time as you find memes, bananas for scale, bread stapled to trees, cat videos, and more of the absurd and oddly absorbing.
■ The best discussions
The real action is always in the comments. Reddit’s discussion threads are where community members jump in to provide commentary, humor, and insight.
■ Answers to questions you’re too afraid to ask in public
Recipes, street fashion, career help, fitness plans, and more—find ideas and inspiration for whatever you want to do.
■ Live video streams, chats, and talks
Want to know what people are doing right now? Streaming videos, live chats, and live audio conversations give you a variety of ways to connect with people in the moment.
■ Crowd-sourced points of view on just about everything
Product reviewers, music critics, sports fans, or doge enthusiasts—find people that obsess and care about whatever it is you’re interested in.
■ Anonymous profiles so you can do you
On Reddit, you (not your job, number of friends, or social status) define who you are.
■ Lots and lots of cats