There are two main ways we use your information to personalize Reddit:
Personalizing ads
We use different information about you and your activity to show you relevant ads. For example, if you joined r/backpacking, we may show you ads about outdoor gear.
Personalizing recommendations
We also use different information about you to recommend communities and posts you may like. For example, if you joined r/backpacking, we may use that information to recommend you check out r/hiking or show you a post from r/backpackingdogs.
To manage how Reddit uses your information for personalization, go to the Privacy & Security section of your account settings. Or to learn more about your data and privacy on Reddit check out our Privacy Policy and User Agreement.