Claming privacy enforced... Monero [up until basically now] doesn't either. Z's "optional" is a plainly documented feature. All are 'opensource', "communities" can "back" / ignore / fork them at will. Only Zencash has TLS and full overlay network support today. Comparing Monero to the Z-family of currencies can't be done with just newsbites. The debate between Monero and Z-family is ongoing, and depends a lot on future developments, both of their own, and in the space. Don't expect any existing currency to survive long term. Be prepared to migrate, often, over the near towards long term.
Here's a dozen bites, analysis of more and deeper would be needed... https://blog.okturtles.com/2016/03/the-zcash-catch/ https://blog.okturtles.com/2016/09/how-to-compromise-zcash-and-take-over-the-world/ https://forum.z.cash/t/parameter-generation-ceremony-discussion/6691/3?u=zooko https://z.cash/technology/paramgen.html https://docs.google.com/document/d/1GJwBAxZ3eEdcjPn4iSpKcWXXrl5YxWSMX8I0K2wiSsM/edit https://web.archive.org/web/20160726150109/https://www.reddit.com/r/Zcash/comments/499tva/to_what_extent_given_sciprlabs_involvment_is/ https://www.coindesk.com/defending-zcash-blockchain-art-security-theater/ https://en.wikipedia.org/wiki/Secure_multi-party_computation https://monero.stackexchange.com/questions/2719/how-does-monero-privacy-and-security-compare-to-zcoin https://www.monero.how/how-does-monero-work-details-in-plain-english https://monero.stackexchange.com/questions/83/how-does-monero-privacy-and-security-compare-to-zcash https://zensystem.io/
