Those who have no knowledge and experience about the market will barely get any benefits from making lumpsum investments because they will barely be able to time the market perfectly or at least well so that they can get good returns on their investments and their investments don't start losing value right after they are done. However, those who have enough knowledge and experience might find this method useful because they know they can time the market pretty well and earn more profit this way.
Your right about this lump sum requires more knowledge about bitcoin to be successful than DCA, if an investor buy at the wrong time with lump sum he might remain on a loss for 2 years like those who bought at the last ATH of bitcoin would still be on a loss in their portfolio, but with DCA we have to worry less about market volatility and we can easily accumulate bitcoin without any need to time the market since its a very flexible strategy, its also a cost effective one since you can just chunk down your investment into smaller bits to suit your income.
You could be able to buy on lump sum and you could be able to DCA as you do like or basing up into your own preference and analysis.Whereas, if you are someone whose really that relying into your monthly budget came from your allowance or salary then it would really be that hard on doing that lump sum or on point investment. You could DCA though but it would be situational which we know that it would really be basing whether
its the best time for you to get in or buy or would really be waiting up a little bit more.
Profitability would really be that basing or depending up on how smart or wise you do make your buy and sell strategy not unless if you are a holder then you would definitely be having
no stress whether the price would be going up or down.