I know someone who set up an automatic weekly buy into $BTC and $SOL for 12 months.
They stopped checking the price after the first month. It was making them anxious, so they just let it run.
They came back after 12 months.
The DCA had averaged through two major corrections, three local tops, and about six weeks of "this is dead" sentiment in group chats.
Their cost basis was lower than any single entry they had tried to time before that year.
The DCA itself was not special. The not-checking was special. By removing the ability to react emotionally, the strategy worked exactly as designed.
The trap in crypto is that the tools that make it easy to buy also make it easy to panic-sell at the worst moment. A scheduled buy is harder to override than an impulse sell.
That is the actual edge.