[2020] Why are players with pings spiking to 100, 200, 300 Allowed in games?

Originally posted by Darth Y'all: Anytime I have a lag death and the killcam doesnt show my bullets, I check the score and what a coincidence, the player that killed me has 200 ping.

Why do I have to play with them?

Are their pings consistent throughout the game, or are the pings spiking periodically?