Reddit is removing the ability to opt out of ad personalization based on your activity. The change is meant to show you more relevant ads and will rollout to all users, except in select countries.
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In light of multiple school shootings in the U.S., Facebook will be making significant updates to its policy, preventing ads for gun accessories from showing up on minors' feeds.
Facebook will reduce the number of ads on its platform for businesses with negative customer feedback. If customer satisfaction remains poor over a period of time, the advertiser may be banned.
Twitter will join Facebook and Google in clamping down on ads for cryptocurrencies and related products and services such as initial coin offerings, token sales, crypto wallets, and crypto-exchanges.