I do believe that the only reason for bitcoin drop below the major buy support at $6000 is BCHSV. be it their dump or only their FUD which led to a whale dump and then panic sell doesn't matter. what matters is that this shitcoin is the reason for the drop.

the subsequent drops however are because the market crashed and the bottom is not yet formed and the market is currently searching for that strong bottom and until it is found we may see the same weird thing happening.

as for the shitcoin itself they are pumping it by spending a lot of money and obviously when you open an exchange or coinmarketcap.com and see one green among the top coins that attracts some more investors (day traders) who want to join in this pump and make it bigger.
it is a good opportunity to make some money in short term like any other altcoin pump but people should be careful not to get caught in the dumping phase.