What I see is that they want to buy long and at the maximum price. When the price is cheap they are afraid to buy and when it goes up they buy. And if they make a profit they don't sell and then they sell when the price goes down and they are at a loss. On top of that they buy in a single lot. For example 1000 USDT can be divided into 40% 30% 20% and 10%. Reserving a margin serves to correct errors.