NXT privacy (NXTPRIVACY) started in 2014 and finished in 2014, with a total supply of 1 million tokens. The team/founder is hidden, The main reason this token was listed is desertion.
(from old site) I am still working out the details, but my current thinking is to create a NXTprivacy asset that will hold significant portions of at least two other assets Privatebet (fully decentralized peer to peer betting) and NXTcard (anonymous debit card that can be loaded with NXT -> local fiat) It will also develop privacyServer daemon's for people to run on their unix nodes to earn nodecoins and offer low cost privacy services for users. The goal is for each server to be able to generate enough revenues directly to cover all operating costs so that we never have to worry about not having enough ddos protected servers running NXT core. So the subscribers to the privacy servers will not only be gaining an extra level of privacy, they will also be helping the NXT network itself. It will also allow you to have unlimited encrypted chat with no additional fee over the base subscription price. I am thinking 10 NXT/month for the recommended subscription price, but maybe nodecoins or InstantDEX activity can provide credits against this.