Snarf's Read the Rules threads is why I have such a hard time believing people when they talk about OS play like it was a monolith of known Best Practices everyone followed. D&D rules were a hodgepodge of disassociated collection of systems and expectations that were held together by the DM via amateur rule design and gumption. It wasn't even the level of IKEA build a bookshelf as much as a pile of 2x4s and instructions written in Swahili (you provide your own screws). Everyone played whatever game they liked cobbled together from AD&D, Basic, house rules, and something from a fantasy heartbreaker they read four years ago.