Looks like a lot of people mistakenly think that Zcoin is a "Zcash" fork which can't be further from the truth. I posted this elsewhere but thought it would be good to have it here as well:
If someone asks you about Zcoin or thinks it's a Zcash clone, just tell them it's Zerocoin.
I know the devs had to name it Zcoin for obvious reasons but it basically IS Zerocoin.
People in crypto have short attention spans, if they start challenging you on it then you can explain the details of the history and relation/non-relations to the protocol but for now i'd just be ballsy and call it Zerocoin to someone's face.
Personally if it was up to me i'd change the coin name to Zerocoin and be done with it, afaik the name wasn't copyrighted and if the Zcash team raises a stink, it's free advertising :p