Your comment includes an assertion that there aren't substantial complaints about Telegram's security (there very much are, BTW). I think the onus is on you to defend that argument.
My point was more that, as a 'consumer' of this product without any background knowledge, their contests seem extremely convincing to the point of being slightly ridiculous. A 300,000 dollar bounty, while participants get quite some more access than they would normally get while attacking this system, gives me that feeling of it being actually quite secure, besides some possible attacks. If they're possible, if there are complaints, why can't they be made real and substantiated?
My first post is indeed not delivering the message I intended, hope this one shows it better.
https://www.schneier.com/crypto-gram/archives/1998/1215.html...
I think for me as an outsider it's really easy to fall for that trap, where certainly point 3 in his article was a realization that I would look at it the same way, perhaps spend a bit of time in my evenings on it but never spend, say, 3 months of research on the off chance that they might pay and that I might be the first winner/best winner, compared to a good (hourly) pay.
I get that it might all be some kind of cheat, but an actual cryptography researcher publishing that it is would, obviously, get a lot of bad karma going in the HN circles (for example) about these contests.
[0] https://telegram.org/blog/winter-contest-ends
[1] https://telegram.org/blog/cryptocontest-ends