The community is in consensus. The new buyer must agree to keep coin rules and consensus rules in place. I'm posting this here to get some feedback on the concept itself.
If altcoins are truly decentralized, should it be possible to sell one on Flippa?
Sorry that Goldcoin did not last this long, but if there are new developers or owners, it's better than it being supporters of the coin, preferably old supporters, so they understand how the coin evolved over the years. But as the new owner, they have the right to change the rules and consensus based on current conditions to move the project forward.
If altcoins are truly decentralized, should it be possible to sell one on Flippa?
If Flippa allows it, then it's possible it's better to also post this offer on a cryptocurrency forum; it's where the buyers are, and hopefully you'll find one, and the buyer can relaunch or update Goldcoin