There are two reason I don’t keep recipes secret.
1) Everybody deserves to eat well. You can get personal glory by making lumpia that no one else can replicate, or you can live for ever in a lumpia recipe that people will bless and remember you for long after you’re gone.
2) Most people don’t follow directions, don’t remember, or don’t believe. Even if you tell people, the knowledge doesn’t get passed on. So who cares if you keep a secret?
This is my philosophy for recipe secrets, but it’s also my philosophy for the few other things I do better than average: podcasting, teaching, karaoke, language learning… if people want to know stuff, I’ll tell them.