I've honestly never understood why these sorts of posts (even for those larger companies with services everyone relies on) get so much traction on HN. I can very easily tell for myself when a site is down, and it's not hard to find most companies' service status page. Sure, if a few days later we get an interesting/detailed post-mortem from the company, I'd find that interesting, but "X is down" does not tickle me intellectually at all, and just wastes a slot on the front page. The inevitable speculation as to whether it was a bad deploy, a bad configuration update, a DDoS attack, whatever, is just not really interesting, though I guess (IMO unfortunately) enough people here find it interesting.
Of course, I'm here commenting, so somehow I got enticed to click through to the comments, so who knows what that says about me...
A bunch of people use telegram bots as a means of alerting themselves/other users (instead of emails and/or sms messages).
The production server might have a 150 load, with swap 99% full and 0 disk space left right now, and you wouldn't get any alerts from the monitoring software, because telegram is down, and it has "never happened before".
Of course, I'm here commenting, so somehow I got enticed to click through to the comments, so who knows what that says about me...