As noted in Business Whitepaper, they started mainnet with 21 million XCH pre-farmed
Oh ... this changes everything. Looks like even after 7 years they will still have majority of coins.
If I would like farming, I would better look to fully decentralized fork with practically no pre-farming, example:
AchiIt seems, that Achi is right decentralization (necessary and sufficient), not like chia - in wording it is decentralized, but if some owns majority of coins - it just necessary for decentralization, but not sufficient.