i had originally typed up a long reply, but i deleted it all because this is the only thing that matters:
Skorpios is bad for the game because in my experience it slows down the game by an unreasonable amount while the corp spends time thinking about making meaningless decisions.
'should i rfg that SMC? what else might the runner play this turn? what about this sure gamble click 1? what about this sure gamble click 4? it’s the last card they played, but they could still trigger a paid ability…'
meanwhile, i have no program recursion, or maybe no event recursion, or exactly 0 recursion in my deck, so ultimately none of these decisions mattered at all because the ID is blank anyway.
i’ve also seen a few people mention that Skorpios restricts design space, but i think the opposite’s happening here. Skorpios exists because Lukas and Damon didn’t predict the kind of effect things like Clone Chip and Same Old Thing would have on the game. you can see in later recursion design that there’s some rfg component (see: Rip Deal, The Shadow Net, Steve to an extent, Bryan Stinson, Restore…)
if things like Siphon, Clone Chip, Parasite, Same Old Thing, etc. just RFGd after use, Skorpios wouldn’t exist