howandwhy99
Adventurer
It's an interesting comparison, but rather flawed I think.
Pre-d20 D&D didn't use Attack Bonuses, those versions used Attack Charts (which are different)
1AD&D and earlier didn't go above 9 (they couldn't reach 10 by the number line they followed) because they represented in-game curvilinear results not linear results. (I say results because I don't see these as Bonuses)
5e looks very flat for a progression and a middle ground between 20 levels of progression and going back to a finite scale that fits on one d20 die.
Pre-d20 D&D didn't use Attack Bonuses, those versions used Attack Charts (which are different)
1AD&D and earlier didn't go above 9 (they couldn't reach 10 by the number line they followed) because they represented in-game curvilinear results not linear results. (I say results because I don't see these as Bonuses)
5e looks very flat for a progression and a middle ground between 20 levels of progression and going back to a finite scale that fits on one d20 die.