But those who follow the DCA method little by little and hold Bitcoin for a long time are the only good investors
I disagree with you that only investors that are using DCA to accumulate bitcoin are good investors. An investor will be successful in his bitcoin investment if he uses only his discretionary income to buy bitcoin and hodli for more than two circles irrespective of the strategy that he uses as long as he was able to grow his bitcoin portfolio overtime. People using lump sum and buy the dip are not bad investors, because you can mix DCA with the other two methods for a better result.
but those who have invested the most in the current time are the ones who have been able to keep long-term Bitcoin investments. Because a person meets his basic needs from his income and invests in Bitcoin with all the money that exists, because his investment must be long-term and it can be deposited for a long time
Anyone that uses all his money that he has to buy bitcoin is a gambler and will end up selling his bitcoin at loss when he needs the money to solve his problems. You can only invest with the extra cash from your income aftee taking care of all your basic needs and monthly expenses.