I think that 3.x was a huge change over what came before. Before, to play the game you had to say what you were doing; since 3E (4E is the same) you just roll the dice and add your modifiers. "Roll to see it" is an obvious example: before you had to say where you were searching. Now it doesn't matter what you say, all that matters is that you roll high on the D20 and have a good modifier to add to it.
So lemme get this straight: You picked up the White Box in 1974 and then somebody woke you up in 2000. Having missed 25 years and everything published for D&D from
Supplement I: Greyhawk in 1975 until the the 3rd Edition PHB, you were shocked to discover rules for resolving searches using dice rolls?
I find your story... implausible.
This is doubly so for the social skills like Diplomacy. Before you actually had to speak in character or at least explain what point your character was making; now you just roll high on a D20 and have a good modifier to add.
AD&D 1E DMG, pg. 10: "The author has a d6 with the following faces: SPADE, CLUB, CLUB, DIAMOND, DIAMOND, HEART. If, during an encounter, players meet a character whose reaction is uncertain, the card suit die is rolled in conjunction with 3d6. Black suits mean dislike, with the SPADE equalling hate, while red equals like, the HEART being great favor. The 3d6 give a bell-shaped probability curve of 3-18, with 9-12 being the mean spread. SPADE 18 means absolute and unchangeable hate, while HEART 18 indicates the opposite. CLUBS or DIAMONDS can be altered by discourse, rewards, etc. Thus, CLUBS 12 could possibly be altered to CLUBS 3 by offer of a tribute or favor, CLUBS 3 changed to DIAMONDS 3 by a gift, etc."
AD&D 1E DMG, pg. 35: "When the basic level of interest is found, and Characteristics discovered, roll percentile dice if the PC states a desire to accept the applicant as a henchman. Adding the player character's charisma reaction adiustment to the interest level, and if the dice score does not exceed interest and charisma reaction adiustment, the NPC accepts employment."
AD&D 1E DMG, pg. 63: "Any intelligent creature which can be conversed with will react in some way to the character thot is speaking. reaction is determined by rolling percentile dice, adjusting the score for charisma and opplicoble loyalty odjustment as if the creature were o henchman of the character speaking, and the modified score of the percentile dice is compared to the table below:"
Mechanical resolution of NPC reactions, as handled by the Diplomacy skill in 3E, have been part of the game since 1974. Explicit guidelines for modifiying the base die roll have been in place since at least 1979.