The main problem is that Bitcoin Cash is mined by only one company, respectively this company ViaBTC controls almost more than half of the mining power, which could lead into many problems in the future. We are talking about decentralization, but here you have an authority that can completely overtake the network
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This would be the problem since those who are holding it worry they can be 51% attacked and take down the network at anytime with only one company mining it in the first place.
The only time I held any was at the fork and sold it immediately for bitcoin.
Never held any since.
