Hi guys. Haven’t seen any mention on Pirate Chain. These guys are built on Komodo chain and they use the ZKsnark system from Zcash but it’s implemented by default. It’s been out for a while, but I haven’t seen it mentioned here.
There are a lot of privacy chains out there most of them are just spin offs of other projects, like you mentioned Pirate Chain uses ZKsnarks from Zcash, so its basically the same with some other twists they added. If we would to mention all privacy coins out there the course would take ages to complete. 
Yeah you have a point