This script is mining monero which uses Cryptonight algorithm. This algorithm kinda famous for being CPU mine-able unlike other cryptocurrencies. Now, the coin

This script is mining monero which uses Cryptonight algorithm. This algorithm kinda famous for being CPU mine-able unlike other cryptocurrencies. Now, the coinhive page is completely blocked by all the plugins so I cannot find the exact story. But, if memory serves correctly, during the launch devs have presented a story where they use the script on a forum. The results were pretty impressive with payout reaching ~ 1k USD. Though there is a section which clearly says this is not economical, my take on this was that they wanted to entice enough people to mine using their script. The devs also promised to look into this kind of abuse but I guess that is not happening.