to @Dominic

There are better options (by their nature/architecture) if you want really secure messaging.

If you want a great (usable) decentralized social network, I do not know of any better options than patchwork.

Messaging is a much more crowded market, and I would argue that one-to-many software depends more heavily on network effect than one-to-one software. I have four or five messaging apps on my phone(s), but I only post messages or participate in threads on patchwork.

Timestamps are a feature that I think most potential users would expect. I have noticed that I receive new messages over patchwork that date back to some time in 2015. It's worth knowing whether a conversation is ongoing, in most cases.

Protocols influence the way people use platforms, and removing timestamps from the UI could tend towards people responding to conversations which had died out weeks, months, or years before.