#SQD cannot be empty, the logic is that the rate is charged once an hour, even if it is empty to the top, it won't earn much, and there is also the possibility of a sudden spike, which is not worth the risk.
#pipin cannot be empty, the logic is that it is a positive rate, and the market maker has opened too many long positions, which is expected to attract attention.
Of course, I basically won't touch these coins with abnormal rates in the future, because they are played by experts.