I think the majority of developers/startup founders have no problems sharing their idea or plan before launch date. They talk about it to attract new prospectiv

I think the majority of developers/startup founders have no problems sharing their idea or plan before launch date. They talk about it to attract new prospective clients, collaborators, create interest and so on. Very few operates in stealth mode nowadays. So when you freely share your idea before launching the product you already consider the value of the idea alone basically zero, while you think the value resides all in your execution. That's why I believe that if you have an idea you'd better be an exacutor or a sales person, otherwise there no or little value in your contribution. There's no shortage of ideas.