Yes, in this case the inboxes would be the obvious problem, but there might be others too, depending on the implementation. In any case, I don’t think it would be possible to assume lack of permanent record, the way it would be possible with non-recorded private conversation.
(I downvoted because I saw the comment as decreasing the thread’s signal-to-noise ratio: as Nick noted, the Internet Archive’s Wayback Machine doesn’t archive private pages or emails, and is therefore not relevant.)
Do you mean in users’ inboxes, or something else?
Yes, in this case the inboxes would be the obvious problem, but there might be others too, depending on the implementation. In any case, I don’t think it would be possible to assume lack of permanent record, the way it would be possible with non-recorded private conversation.
The Wayback Machine?
Edit: Or not.
Not relevant to email, or even an access-controlled site.
Oh. Oops. (I don’t know much about that sort of thing, obviously.)
Honest question: why was this downvoted?
(I downvoted because I saw the comment as decreasing the thread’s signal-to-noise ratio: as Nick noted, the Internet Archive’s Wayback Machine doesn’t archive private pages or emails, and is therefore not relevant.)