The MFT ERC-20 token can be used as a medium of exchange within Mainframe, a platform for decentralized applications. Their network enables applications to send data, store files, and manage payments. They are very focused on privacy and free-speech and have also donated 1000 ETH to the Freedom of the Press Foundation.
Rather than take the routes established by privacy-focused projects, e.g. ring signatures, zk-SNARKs, or Mimblewimble, Decred's new privacy features use a mixnet approach, where they have integrated the mixnet with their Proof-of-Stake (“PoS”) governance system.