Being a moderator hehehehehe
Tbs (=to be serious), maybe something like being able to play any version of any game on any system with any mods. Like, I have Pokemon Platinum. I want to play Platinum mods, but to do that I would need to get a Platinum rom on PC, but everywhere I go all the guides say "Get your own Platinum rom!". And I don't know where to get a Platinum rom on PC (while avoiding viruses, scams, fake sites, etc.) or how to transfer my own Platinum rom to PC. Would also be nice to be able to play Platinum on Switch or Vita though there's the lack of dual screens.
Ideally it would nice if I could just snap fingers and have my Platinum be modded and be able to play that modded Platinum on my 3DS. And it would be nice if I could snap fingers again and play unmodded Platinum.
Would also be nice to play the Demon's Souls remake or Bloodborne on PC or be able to play Horizon Zero Dawn on Switch etc. Or if I could play a game I already own on one system on another system without buying it again. Or if there's a game that doesn't have a definite version (let's say the PS4 version has more content but the PC version has better graphics), it would be nice to be able to combine them and play the combined version.
TLDR; to be able to play any version of any game on any system with any mods.