Twitter replies have traditionally acted like public spaces. Once a tweet is out there, pretty much anyone can reply to it. In some cases, that makes for good discussion. In others, it can lead to disaster, abuse, and harassment. Twitter's looking to change that by giving you more control over who can reply to tweets. The feature, announced in January 2020, is called "Conversation participants." Since then, it has changed a bit. In Twitter's most recent post on the subject, as well as in a conversations help page, the company doesn't name the option outright. More importantly, however, is... more
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