Sure, but this still only consumed a tiny fraction of the Playstations in production at the time, rather than ~all of them. There are only so many HPC labs in the world (and an HPC lab using PS3s is a font of good press coverage for Sony!) while there are as many crypto-miners as the market will bear (and they generate only negative press coverage on top.)
Re:Nvidia Limits RTX 3060 Hash Rate
by friedman23 on Sunday February 21, 2021 @11:26AM
(#26214669)
Sony disabled this functionality later on
Back at PS2/PS3 they were used for computing, Sony actually released a kit and had paid staff helping people who wanted to build PS2 supercomputers -- a good friend from college worked on the project at Sony. They had amazing vector processing units in them.
* https://www.theverge.com/2019/12/3/20984028/playstation-supe...
Article from 2003 on PS2 setups https://www.ign.com/articles/2003/05/28/ps2-supercomputer