Any strategy can be very potential if it aims to invest in bitcoin, I can only give good advice to investors what strategy they will choose for their investment, for the continuation of the choice is only in their hands, want to use what strategy for their investment, what is clear is that investing in bitcoin is a long-term investment if they want to get the profits they expect, and requires high consistency.
Those investor must research before they start investing. If they don't do that and only follows what other people suggest, they will difficult to follow. They will not have a chance to make a profit because they don't have a right plan to investing.
Those investor can use DCA method to invest in Bitcoin because many people already proves that method is works best for them. They needs to prepare some money they can afford to start investing in Bitcoin and try to buy Bitcoin using their schedule. They don't have to thinks much about how the market movement because their focus is collecting as many Bitcoin they can.
If they don't have much skills in trading, they can be a Bitcoin investor which will not makes them worry. But they must have a control to overcome their worry because the market will always moves ups and downs.