It was a nice experiment, I know there were some public "private keys" on this forum but never think they were that big amount.

There is a way that you can make money with them, if they are old keys and moved coins in the past, then you can get clam coins with those keys. You can use the service on Just-Dice for that, or install the core and make the swap direct from there.

And another fun way to make money with that list is by selling it in one of those services that let you sell files or compressed folders for cryptos. For sure some users would be interested in buying that list.