the big boy BTC will stay that is for sure. and is getting strong. it was not badly effected after the BCH rush. one thing for certain is that BCH was a bubble and the prove is that massive drop right after the climb. heck transactions were very slow some jumped in when it was low by the time the transaction got it was too late. the exchanges that performed faster made their users richer.
Many exchanges actually crashed or didn't allow trading on BCH for some time when the price of the coin was going up.
All coins have pumps and dumps. Many "investors" in the crypto space are newbies and get caught in the middle of them. In my opinion real millionaires have been made by holding (for instance Bitcoin), not by trading it.
I do not think trading doesn't make one a millionaire, infact people who got into it earlier or people who having been trading recently are the ones who made big.
My biggest fear with these huge pumps and dumps is, how badly Siacoin seen the floor, i'm scared if BCH will also loose its sheen.