[beefhash]

I'm not sure what drives you to expect privacy from a communications platform fueled with venture capital money. I wouldn't be surprised they're trying to do at least two things:

1. Applying a censor to voice depending on server/user DM configuration. I know they've got some kind of OCR that tries to identify and block offensive words contained in images, such as the N word, when people are not friends and at least one side hasn't changed the “safe direct messaging” option down to “I live on the edge”. 2. Store records at least temporarily for law enforcement.

And the obvious other things are keeping for post-processing and derive user interests for advertising, or batching and forwarding the information to intelligence agencies.

It's hard to tell, realy.