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I get why you showed up here, but you're really not addressing the point of the post at all, and in fact you're trying to distract with the suggestion that Signal's publication of that code protects people from this flaw. It doesn't. At all.
Wow, that's a pretty hostile (and accusatory) response to a fair ask. This is one (small) step removed from accusing someone of shilling/astroturfing.
Let your product stand on its own merits. If you have a good reason why you won't open source Keybase's server implementation, own it. Don't undermine requests to open source the code by publicly accusing people of supporting a competing product.
The person you're replying to didn't make an argument in favor of Signal - or any other competing product, for that matter. In my opinion, your response is actively distracting from their request.
