How exactly would you buy dead coins? If no one is mining them the chain doesn't move. Also how do you you determine the value of a coin that has no liquidity? Or are they all somehow worth 10k FUNC?
I've not really looked into much, but I think what they're doing is trading a certain amount of the dead coin for a certain amount of FUNC. For instance, lets say you hold 100 dead coin and FUNC is offering to buy the 100 dead coin for 1 FUNC. They obviously don't have their own money involved in buying them. As for the chains moving, even a lot of the dead coins have an idiot or two still mining them in the hopes that it may be worth something again in the future. If there's no hashrate at all, then I guess the coin is completely dead. I'm not really sure what the purpose of this whole project is.. I'm not that interested in it.