some of the most pump altcoins actually are top coins listed on coinmarketcap
coinmarketcap listings are complete BS even failed ponzi scam bitconnect still has a $6.8m marketcap and everywhere apart from 1 exchange has now dropped it there is no liquidity at all
I agree, coinmarketcap is not reliable, the whole of crypto is manipulated, and sometimes attackers and supporters align and both desire the price of particular crypto to drop. I think bitcoin cash supporters are quite happy with price, and some third party services are always adding or removing coins, and likely are paid to do both so short term changes don't mean much. BCH is a real contender, and when CSW gets access to his trust account, I expect fireworks!