Thats not even slightly true.

Their IP belongs to AS21581; which is registered with a company called 'M5 Computer hosting' out of west-coast USA.

m5hosting.com

The last hop is Santa Barbera.

Definitely does not fall in the AWS ranges.

Hacker News is self-hosted: https://news.ycombinator.com/item?id=22767439. Let me see if I can find a better link where the specs are discussed.

Only if you use their "infinitely scaling" services. eg. s3. If the attacker is hammering you with expensive queries and your database is on 1 ec2 server, you're still going to go down.

The nameserver is aws but IP4 points to “m5 computer security”