Any investor can succeed with the DCA strategy, whether in holding or in buying and selling. But the most success will be in case of long term holding, because by buying little by little means you can build wealth, but according to this strategy all investors are successful. If participating in the investment following the regular DCA procedure.
The DCA procedure is only more suitable for buying, not for selling because by buying using DCA the collection of assets will certainly be more perfect if it can be done regularly like with Bitcoin. However, in terms of selling it, I think every investor no longer needs to apply the DCA procedure because every investor can set a target according to their own wishes when they want to sell it again. And even investors who prefer to buy using this method will usually not be more likely to think about selling in the near future before what they are accumulating becomes much larger.
The ultimate guide of every investor is "plan" which they abide with, the plan involves everything from the strategy, timeframe (how long), possibly maturity stage. So while accumulating and investor can DCA, lump sum but the plan is what the investor will work with when selling relative to how many stash of Bitcoin have been accumulated.