From my experience, if you tick off the wrong person, the threshold for them starting a DDoS is surprisingly low.
A while ago, my company was hiring and conducting interviews, and after one candidate was rejected, one of our sites got hit by a DDoS. I wasn't in the room when people were dealing with it, but in the post-incident review, they said "we're 99% sure we know exactly who this came from".
What the hell is wrong with people? Honestly the lack of substantive human interaction in a lot of folks' lives, except via the Internet, is a real problem.
Take that story for instance. Here's how that goes in the physical world, just to show how unbelievably ridiculous it is.
So you didn't get the job? What's your next step?
I'll stop by their office and keep people from entering the front doors by running around in front of them. That'll show those bastards.
A while ago, my company was hiring and conducting interviews, and after one candidate was rejected, one of our sites got hit by a DDoS. I wasn't in the room when people were dealing with it, but in the post-incident review, they said "we're 99% sure we know exactly who this came from".