You might have a small typo up there. The tag is "merkle" while your tag-link says merkel... like the name of Germany's current chancellor. ;)

Thanks for the feedback. As said: I'm simply not sure what to do with some questions. So I guess I'm understanding it correctly that - if there are any doubts about the possibility of an assumption - it's more constructive (aka smarter) to try to get the OP to reformulate the question more clearly?

@CodesInChaos That much I understand and I know there are many questions (especially in quantum crypto) that do make sense. But there are also those questions that tend to leave the path of logic an translate to "Assuming that ABC exists, would XYZ be possible?" We can't answer "Well, let's assume DEF is invented to prevent just that problem" and be done with it. I mean, it would be a correct answer — but wouldn't it be as useless as the question itself? In a sense it would be like trying to "predict the future"; which would be asking for "personal opinions", or wouldn't it? [confused]

Communities promoting communities sounds interesting… have yet to see it too though. (I'm probably member of the wrong communities.)

@HendrikBrummermann Provided all answers are edited too since they also contain the name Snowden. Also, I'm not sure if "Alice" and "Bob" examples would make sense as the situation described in the question might become unclear.

Joining both questions sounds good to me as that could translate into a better question by providing the complete picture. But that's just me of course...