Yes, I believe in it, but unfortunately it is not always as profitable as trading. If you can not choose the right moment to sell and buy an asset, then you can also lose money and profit.
Of course, if you bought coins in a low position, then it is definitely better to wait for time when the price reaches its peak. I also try to sell coins received from the Bounty Company only after a minimum of six months, and then if there are effective indicators.