Stealthcoin (XST) has been rebranded to Stealth (XST): https://twitter.com/stealthsend/status/993226001101545473 Stealthcoin provides a complete anonymity solution for cryptocurrencies. Stealthcoin has a fair distribution with nearly four hours of low block rewards, a small premine of 1%, and the long-term energy efficiency of proof-of-stake minting.
TrueFeedBack is a survey/bounty platform where companies, institutions, academicians or other interested parties can create surveys or bounties. Users can participate in these surveys and bounties, get incentives for participating and stay anonymous all the time.