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Re:How WhatsApp enables multi-device capability by kubanczyk on Wednesday September 22, 2021 @07:01PM (#28623147)
Lack of federation. Maybe "we" can maintain some complex free software, but it is them who cannot grow their userbase.
Re:How WhatsApp enables multi-device capability by ajvs on Thursday September 23, 2021 @03:20AM (#28626165)
Basically this. Signal refuses to give up control (they've even shut down third-party clients) so they're a walled garden like WhatsApp.