[StavrosK]

I don't think "people who design a cryptosystem" and "people who send randomness from the server" overlaps a lot, yeah. I don't see how anyone remotely familiar with cryptography would think that sending randomness from an untrusted party is a good idea. It's this bad.

[pdimitar]

Well, a bug I filed to Telegram eventually got closed on petty bureaucratic grounds (wrong repo but nobody moved the issue [I did copy it to the right repo], then X months without action etc.) so this might say something about the average competence and motivation of their technical staff. :)

Thanks for being one of the few to discuss constructively in this sub-thread. It's much appreciated.

[StavrosK]

No problem, your reply did show that you wanted to discuss but was frustrated, so I just continued the discussion.