End-to-End Encryption is good but metadata protection counts as much. Names, group descriptions and memberships, avatars, who talks to whom ...

Both #deltachat and #signal go to great length to protect all the metadata that WhatsApp grants itself gratuitously. #Matrix stores similar scales of metadata on their servers, even if you can choose which server stores it.

Everything is better than #Telegram which additionally stores message contents in all group chats/channels and most 1:1 chats.

@delta Wait. How does Delta protect metadata? I thought you had anonymous accounts but you can't protect metadata.
@ahalam all the mentioned metadata in the top post resides in the encrypted parts of messages. The server does not see group descriptions, names, avatars etc. We'll soon do a blog post on this and recent advances to "zero metadata" operations, stay tuned :)
@delta @ahalam can't wait to read your blog post, will be enlightening for many of us. Metadata encryption is a trending topic ^^