I think torrenting someone else's copy of a game is still illegal regardless of if you own a copy yourself

I'm talking purely ethically, I don't consider it to be any different where I paid for the game originally if I can no longer access it via that platform

Pretty sure roms are only legal if you rip them yourself from your own console.

I don't think it's legal for people to distribute them but torrenting makes that an unwinnable game of wack a mole to shut down so they don't bother usually