@delta @dside it's entirely possible to introduce and center a new term (like "reliable deletion") while also mentioning its relation to a preexisting term such as "forward secrecy".

I see no strong need to avoid new terminology, if the old terminology is clearly not serving its communicative purpose.

@dside the term https://en.wikipedia.org/wiki/Forward_secrecy is unrelated to the concept of "forwarding a message".

It's a very technical term that clearly has gotten popularized. However, its precise meaning is subtle and not intuitively understood, even as the term is widely recognized as some kind of desirable property.