[Xeoncross]

They are retained by the other organizations. It's good that at least snapchat itself removes it's copies though.

[spenczar5]

Who are the other organizations? You sound super sure, I feel like I missed a news story recently that you read.

[mulmen]

I'm not sure if there has been confirmation anywhere but it would be foolish to assume nobody is storing the messages you send on a closed platform. You don't know how it works so your only safe assumption is the worst case.

[gaius]

We all thought Usenet was ephemeral and then Dejanews revealed themselves...