In general, 99% of successful crypto traders are unlikely to sell their strategies. Because their strategies are their earnings. Why should they breed competitors? They are doing well even without selling the strategy. They know how to make money, why do they need these extra worries in the form of sales. Every successful trader knows the value of his trading strategy. He knows what he had to go through, all these nerves, loss of money, numerous hours spent on charts. He knows the true value of his secrets.
Well if you think about it, it should be the total opposite actually. Given we believe the markets work on the basis of supply and demand, If "strategy A" gives out a buy signal and 1000 people follow it and start buying, it should create buy pressure in the market no? 1 person vs 1000 should actually increase the odds of that strategy actually working out, why do people think it's otherwise and a good "strategy" should be kept a secret? If you think logically about it, it should be the total opposite. Just like a pump and dump group, There is a logical answer behind why these strategies don't work out when the public starts following them, I will hold the answer for now and wait for other people to see if they can come up with an answer.