Well, you think it does not make you a better player. But you think that only.you could as well think that you do not become a better athlete by regular training and learning proper jumping/running/swimming/else technique.
Enjoying chess, you said. Well, you most liekly get spanked time and again, and can hold your ground only against very weak players - is that what "enjoying it" is about? A piano-player cannot enjoy playing the piano, if he cannot reliably find the rights notes on the keyboard. Telling from my own example (I'm a terrible swimmer), swimming is no joy but a pain if you do not have proper swimming technique. And - sorry to sound a bit rude - without a certain ammount of knowledge about what you are doing in chess, you neither play nor can truly enjoy chess - you just move pieces on a board and kill some time (no personal offence meant.) I mean, you necessarily miss all the hidden beauty in it, becasue you lack the skill to discover it. 30+ years ago, I played chess like you do, and did not know much about "theory" - why do you think am I beyond that now, although I had ten years of interruption?
Theory does not make you a better player, you say. You are on a wrong path there, Letum - every chess player knowing the game and every member of a chess club will tell you that. You could as well claim that learning to read does not raise your competence to read a book.
