Does anyone know why those [KPM], [ACC], [HSKR], [DMG] turn from white to green, orange or red? What does this mean? Can players give me an answer?

Those colors are based on the difference between the player's stat and the playerbase average stat. White means lower or equivalent, green is slightly higher, orange is moderately higher and red is significantly higher.

I don't know exactly the exact details when it come to thresholds but that's the idea.

It's best to read those case per case, you often see orange KPH for hardcore only players due to the 60% base health as well as red hspk for some shotguns if the player uses slug ammo. Don't make hasty conclusions and try to cross-check data with others and battle reports.

KPM = Kill per minute

ACC = Accuracy

HSKR - Headshots kill ratio

DMG = damage 

Thank you TheNotoriousDoge administrator for the explanation, does that mean that the red or orange phenomenon is not necessarily a problem or a suspicion of cheating? Is this understanding reasonable?

It’s a potential issue but not guaranteed to result in a ban.