What happens to stale/abandoned/disused smart contracts on the ethereum mainnet/testnets?

Is there some sort of a automatic Garbage collection method such as purge to purge these stale smart contracts? i.e., contracts with no longer active pointers

  • hello! its not really a duplicate. wondering if there are methods solidity programmers like myself can do to ensure. Is garbarge collection in the roadmap? metropolis or serenity release?
    – Nathan Aw
    Apr 5 '18 at 13:00
  • Yes, it's not exactly a duplicate, but both questions are about the same thing, and it was answered in the other post. Apr 5 '18 at 13:06