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The original was posted on /r/opensource by /u/jopinr on 2023-08-18 22:15:15+00:00.
I'm a member of a small activist group. So far, we have communicated using signal messenger, but in the long term, having multiple signal chats can become unpractical. We were looking towards an open source Discord alternative named Element as a potential way to collect our chats together. Element seems to have most of the required functionality and its end-to-end encryption is vital to us for security reasons.
However, Element lacks some other important security-related functionality: namely, disappearing messages. It seems like the admin of a space cannot even manually delete other people's posts. This can become a problem for us.
Are you familiar with open source alternatives to Discord that have this functionality?