I'll roll if he releases a firmware that bricks the fpga cards. That would be the most epic trolling of all time. Give out some really high figures, get a bunch of people to spend a ton of money on hardware, then release a firmware that destroys the fpga

I've destroyed an amazon node or 2 accidentally with power draw. Mining is the reason the shell now has that 150A limit.
nice FUD
It's a completely realistic scenario.
No, it's not. Unless you physically start smashing an fpga, you are not going to brick it, it's not a consumer product you just run xyz miner you downloaded odd the internet.
Total fud.
What's a fud?
Also you can very easily brick an FPGA if you don't know what you're doing (or do, and are trying to). One in a data center owned by Amazon? I don't know about that, I would assume they have safety measures in place, though as the OP says, they now have a power limit to prevent it...