They’re not going to steal your idea. Because it’s impossible to steal mastery of a trade.
You can’t out out “George Martin” George Martin. Or out “Prince” Prince
YOU are the magic puzzle piece that makes it all work. Don’t worry about giving away the secret to the sauce. No one can make it all work like you, because you are the magician. You are the integral piece that connects all the dots.
What you need to do is engage with your audience. Show them how it works. Expand the enthusiasm of your fans by discussing the build of whatever it is that drew them in in the first place.
“Want to know how we got the guitar to solo to sound like the end of the world? Modulated octave fuzz split through two amps. Check out my new video where I show you how.”
“Want to know we got the background vocals to sound so huge? MS and Blumlein stereo mic’ing. Head over to my blog where I explain that, along with many other recording and mixing techniques.”
They will go from enthusiastic to completely addicted, spreading your ideas, your name, and your mastery around in the process.
No one can out “You” You.

Photo by brokinhrt2. Licensed under a Creative Commons license.