No markets. No volume. No reason to mine.
That is what HAC is actually. See Coingecko listing :
https://www.coingecko.com/en/coins/hacashCoinmarketcap doesnt even list this thing at all.
The stats dont lie but the people telling you its worth anything are.
HAC is using to mine HACD diamond , the first PoW_NFT. please read the WP ,not people just posted .