If you want to publish your open source code, do it with Github.
After your publish it on Github, you can share it on Bitcoin talk with source link to your Github account.
I think that's the best way to go about as GitHub gives a more professional content creator exposure than BTT does. Besides, it also puts it out there so other tech savvy peeps see what's up.
I am thinking that if you worry that someone steal your code, why do you want share your code publicly?
Well, you do have a point there. But of course, it could OP is interested in showing how transparent they're with whatever innovation they want to run by making it an open source. That's the way I see it. I may be wrong.