Hi @WaveToys !
But what about copy-paste tracks? For example, immediately 30 items in 1 day. 
We have seen such “grief - authors” quite recently!
More details here! 
And if there are 5 accounts from one author, they will not surpass in number either? 150 tracks per day!
Well, a maximum of 3 days! 
(If the copy-paste-author falls asleep by accident! )
What to do in this case?