On HN, apparently. See the recent thread on Wordle.
The reality is likely to be: they make a very small amount from ads and user donations that might, if they're lucky, cover the costs of hosting. The warez scene is a subculture and community for the people who participate in it.
It is depressing that HN participants are so often mystified by the idea people might be motivated by intrinsic or social factors to engage in peer-based production (whether legal or not) when so many of the companies they run or work for exist only because of peer-based production efforts like Linux and other FOSS software.