Can someone help clear this up?

Hi Steemit community, I've been involved in crypto for a bit now and am very invested in some of the alt-coins. Of course, I also like BTC and ETH, but I've noticed a lot of confusion around BCD and BCH and wanted to get your input.

It's been hard for me to find a lot of detailed information on Bitcoin Diamond and Bitcoin Cash --- some of my friends in crypto have made money off of buying and selling BCD and BCH but I don't know of anyone who's holding them. I've heard a lot of people saying they're scams, so I'm staying away from that murky water for now.

Do you guys also think they're scams (in terms of long-term holding)? Money can be made in the short term but I'm more curious about what you think will happen with these things long-term.

Thanks for reading :)