A second resource utilization test, aimed at delete-duplicates:
>>> ">>1-300" + ",1-300" * ((4096 - 7) // 6)
if this causes a spike it can be mitigated by switching the final iteration of the range regex from (,numberorrange)* to (,numberorrange){0,11} or whatever upper limit the admin finds reasonable. However, this becomes less important if the rant is implemented.