Not sure what Shadow would of copied.. Shadow authored the first dual-key stealth address implementation and open sourced it. Shadow authored the first Android and iOS wallets to support staking; In addition, encrypted messaging and stealth transfers. Shadow is implementing zk-SNARKs in the next update. I'm not sure if anyone here knows what that is, but it's a MAJOR milestone for cryptography - ultra blockchain compression with near instant verification. The lead dev of Shadow is against code plagiarism and gives credit where it's due.. unfortunately credit is not due to Stealthcoin or it's developers.

Shadow on the other hand deserves credit from around 5+ clonecoins, which have copied it's innovations without giving credit. If you see a coin that is advertising "Stealth Address" and "Encrypted Messaging" it's pretty much guaranteed it is a clone of Shadow.

So stealth is a clone of Shadowcoin? They say encrypted chat yada yada?