TL;DR: Reddit is removing the option to opt out of ad personalization, targeting ads based on user activity. Some specific ad categories can still be limited, but there’s no more opt-out option.
TL;DR: Reddit is removing the option to opt out of ad personalization, targeting ads based on user activity. Some specific ad categories can still be limited, but there’s no more opt-out option.
That's not the only way companies get data about you though. Some collect it through their app - the sites that try and force you to use the app instead of the site are usually the worst offenders. Others just buy data from data brokers like Acxiom, Experian, LiveRamp, etc. and correlate it with the details they have on you (phone number, email address, ad targeting ID, etc).
Where possible, use sites instead of apps, since it limits the types of data that can be collected (as sites are highly sandboxed compared to apps). Good sites let you install them as PWAs for a more app-like feel.
Nobody said it was.