People get fired for this every couple of years...as innocuous as it seems, the FAA will nail you to the wall IF they can ID you.

The folks who get busted invariably turn themsleves in by posting stuff on public internet sites...usually with their real name And yes the FAA can subpoena internet organizations to get your name if needed.

Any pictures that are obviously below 10,000' should be kept private...

And No, the FAA doesn't have anything better to do, unless it's a page-by-page audit of my Jepp manual on a SLC-CMH run