What's interesting is that during Pawn there were so many 2/3/4+ KDs whereas in the Sanboxd era a good KD was considered ~1.25-1.3+
i'd say thats due to there being more players, where a significant portion of those players were god awful, most likely because they were children.
also i dont remember anyone having a k/d higher than 2.1 or so during the peak of PT, unless they were known padders (Leeman, PawnMobilizer, etc)