Facebook tells employees to preserve all communications for legal reasons
nytimes.com
nytimes.com
First, does Workplace chat (including video chat) count as ephemeral messaging? Or IRC? Because those are how most work gets done there. Remember that big outage a few weeks ago? One of the reasons it took so long to fix is that normal lines of communication were cut. If this edict were rigorously followed, this would cripple operations (especially involving remote workers which I suspect is the real point).
Second, speech is a form of ephemeral messaging but I doubt they mean to discourage that. In fact, normal practice at companies worried about legal action is to encourage non-recorded communication. If they discourage one form of communication because it doesn't leave a record, but say nothing either way about another form of communication that also doesn't leave a record, they've achieved nothing at all.
I've had this enabled on my account due to a former employee threatening employees and naming me. It caused grief for the IT folks as it would fill up all their space. My account was one of the oldest and received emails from many ISP's, vendors and old monitoring tools.
I’m genuinely curious how you ended up here?