An open back door to Apple’s garden where you can exploit any and all proprietary information.

In other words, the common user won’t buy it. These are more likely other engineers, hackers, and the occasional collector. Though the collector would turn around and try to make a profit.

True. But keep in mind they posted the full Apple serial number and claim it’s running switchboard OS. So if it had fcc details what would be the point in scrubbing them? On my 6s there is no noticible surface change over the fcc info so I’m guessing it’s laser etched? That’s a lot more work to remove than a simple…

I would guess that it is relatively easy to remove things like the FCC logo and serial number from the back of an iPhone with a little patience and the right chemicals.