You are right mate even me I don't believe or like the idea of accumulating Bitcoin through the trading profits, that's a very bad strategy to use as an investor who wish to have good portfolio of Bitcoin, perhaps what most people forget is that trading doesn't always work the way it seems to be, however trading is very risky that the possibility of making a profits is not certain and the risk of losing your capital is very high, so the question is what if the account got blown on the process what will happen to the plans of accumulating the Bitcoin?,  I observe that greed is one of the factors that establish failure, people always want to use one stone to kill two birds at a time which may not always work all the time,  but perhaps instead of using that uncertain strategy he should have just adopt DCA strategy instead which will save him from the risk of losing his capital for trading.