Even if they have, this doesn't prevent from turning on a feature flag, or push an experimental build to some users.
If there is a 2nd opensource client written by someone else, you would hope they would raise the alarm when asked to implement "feature flag 437 means send all the crypto keys to the server".
alt Hacker News
If there is a 2nd opensource client written by someone else, you would hope they would raise the alarm when asked to implement "feature flag 437 means send all the crypto keys to the server".