While Reddit users tend to be savvy internetters, few of you have likely bothered to check Reddit’s privacy / personalization settings.
You need to.
Log into Reddit on your PC/Mac, click your user name in the upper right, and select user settings.
Note: you cannot make these changes from the mobile app. You can make these changes from your mobile browser, but it is very small.
Select “Privacy & Security.” Turn off “log outbound clicks.” Check “App authorization” to make sure you don’t have unused apps having access to your account.
Then select “Personalization.”
Reddit automatically opts you IN for using third party website data. Uncheck each box (you could leave “Allow Reddit to use your activity on Reddit to show you more relevant ads.”
Make sure you hit “save options.”