Many experts caught up in the past crypto/decentralization discourse fail to recognize one key innovation area of #deltachat and #chatmail efforts:

A user interface (UI) and experience (UX) that mimicks and closely resembles Whatsapp and Telegram ... who both have a central cleartext database of identities, social graphs and, in the case of Telegram, also messages and media, of billions of users!

We prefer to ground every discussion in UX/UI terms and measure security by outcomes for users.