But the post was just saying it seems 'dangerous'. It is already 'dangerous'.

Yes, it will probably become even 'more dangerous'.

I'd disagree that many people agree on common definitions of risk. Some people think autonomous drones that can beat humans in a dogfight is already too far, others are holding out for some paper clip optimizers before getting worried.

You included 'world ending' as the definition of risk, others have lower bar than that.