⭐ Merited by vapourminer (1)
Why are you calling it a "mining" pool? It is a pool but there is no mining, it is just solving a "puzzle" which is not "the Bitcoin Challenge" as you put it. This is just a puzzle or rather a brute forcing game. 
It is technically a "de-mining" pool. You are trying to find lost bitcoins that have already been mined, transfer them out as quickly as possible, and construct your signing transaction properly so that some bots can't just fee-snipe your transaction and make it all go to miners as a transaction fee.
Although I think, this particular pool only supports address mode.