I agree up to a point. It's like the difference in giving someone binary or source code. Yes, someone can reverse engineer gerbers into a schematic, but that's a lot different than handing over the schematic, which includes more information about the design than the gerbers do. It's much easier to look at a schematic and say "oh, that's a circuit I want to use" than it is to look at gerber files and think that.

I have some level of confidence that JLC is going to protect my IP. They are big and if someone's IP leaked it could be devastating to their business. Their legal agreements are a lot more detailed and favorable than what's currently on circuithub.