Just curious - what is the deal with SIS coin? Are there any pools for mining, or exchanges where you can trade it?

As I understand it, when you mine SIS you also scavenge fees in other currencies - what currencies can be scavenged; I assume BRK, but are there others?

This is a very interesting and unique coin ecosystem. I am trying to learn all about it while I wait the 2 weeks for my BRX to stake