Who cares. There’s constant blah blah blah about is this game, this adventure, this thing Old School or is it New School? I can’t decide if I care or not. Because a lot of those conversations really come down to asking which club you’re in. As I’ve gotten older, and grumpier, I am resistant to joining these clubs because there’s parts of things that I don’t like about “new” and parts I don’t like about “old.” Maybe we could go Bruce Lee on D&D and take what we like from a particular game/edition , DMing practices, styles of play and discard what we don’t like.
For example… I more or less play Original 1974 D&D with various bits of the supplements, house rules that I have borrowed from blogs or Dragon magazine or that I made up. I use mechanicism that I picked up from an indy game where you take two different colored D6’s. You subtract one from the other. If the result is a positive number then good things happen. If the result is a negative number then a complication occurs.
Is it Old School. Hell if I know. Does it work. For me? Yes. For you. Maybe not.