Reasons

• RPCS3 uses free license so they’d have to share their fork to the public.
• Licensing issues for old games
• Cost

“for some reason”

I can think of a few rea$on$.

The PC can also do that and Bill Gates just turns a blind eye

Honestly, I think while they had a financial incentive, they probably also just didn’t want to bother with the all the work required to add production-level support for PS3 games and and the maintenance complexity of supporting it.

It’s one thing to develop a strong proof concept, there is a lot more involved with getting it to the market as commercial product (with guarantees and support).

That being said, excellent work by the folks who figured this out.