It is absolutely f***ing insane that Lightroom STILL cannot import locked/read-only images. It's one of the most used techniques for photogs in the field. You identify a good shot. You "lock" that photo. And then you SHOULD BE ABLE TO IMPORT ONLY THE LOCKED IMAGES. But no, Lightroom does not do this. It's f***ing insane. If Photo Mechanic can do it, why can't Lightroom? Jumping Jesus on a Stick.
Wow, chill. You'll get more with honey than vinager. And sorry, I've never locked an image in the field(cannot imagine why I would). Maybe instead or ranting, you can explain to us and more importantly Adobe why this is sooooo necessary. You really will get farther with your "request".
It's one of the most used techniques for photogs in the fieldI don't think this is a valid statement. I am a pro photog and also know plenty of others and I don't recall ever hearing any of them locking images in the field (or out of the field for that matter). In the field we're too busy shooting to worry about that sort of thing till we get back to home base. We do worry about making backups of our images while in the field one way or another in case disaster strikes, but that is a wholesale operation for a days worth of images at a time and not an image by image review process.
I presume you lock your images so that you don't accidentally delete them off the memory card in the camera. I've been shooting digital since digital matched ISO 100 film and have never lost an image in the field by accident that locking it would have prevented. I have had corrupted memory cards, a drowned memory card and one fell into a canyon but having locked images would not have helped in those situations.
But, I'm also careful. I don't delete images from cards or format cards till I get home and after I copy the images to 2 local hard drives, one cloud based service and import them into LR. In the field I put full cards in a red pouch where empty cards are in a blue pouch. I fold a red piece of card stock around full cards before I place the card in the plastic box it came in. In the filed I back up each day's shoot to two hard drives each evening (as well as keeping the images on the memory card). Other than a quick glance to assure the camera is functioning properly and no weird camera setting was introduced or left over I do not review, cull, or rate images in the field - just not a good use of filed time.