That's only a meaningful answer if simple traffic behavior wasn't already revealing the same information. Was it, or wasn't it? I feel like I'm having a hard time getting a straight answer.
Does Google already have simple traffic behavior? If yes, then this information is nothing new to Google. If no, then this information may be new to Google.
Form a straight question and you'll get a straight answer.
Are you in the right thread? The discussion here is about what information Google can get from GCM messages, not what the NSA can get from GCM messages.
And even though your question is off-topic, I already answered it above.
Why would you accuse someone of being allergic to a technology when they are simply answering questions about it? If you disagree with the actual topic of discussion - that Google (not the NSA) might get more than just "message sizes and timestamps" out of an E2E-encrypted app which uses GCM messages - then have a normal conversation about it instead of bringing up the NSA repeatedly.
And if not, then stop making baseless and inflammatory accusations.
> Are you in the right thread? The discussion here is about what information Google can get from GCM messages
The parent poster of the post you initially replied to asserted that Signal was "giving NSA the only thing what they want: metadata from Google", so I guess that's where tptacek is coming from.
On a side note, Google can't actually know the message sizes because GCM is used without a payload.
