Scored Main Cap Bearing - Ouch

So what is the knurling pattern for on the rear main seal. My crank is polished like the rest of the journals. I looked at some Scat cranks and they appear to be polished also.
pittsburghracer said
Let’s think about this guys slowly before we tell him to send it. You gotta check the other bearings, you gotta check to see if by running those long bolts he didn’t do damage to the thrust bearing. Gotta make sure oil is going to the oil filter, gotta flush the engine some, should install a magnet in the pan. Should check a rod bearing or two.
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I after going outside in a little bit and check some rod bearings. Can someone explain to me thrust bearing, how it works and which one is it.