Yes I do (have too many injuries for a 23 y o). I had scoliosis, a bunch of unknown-cause back pains, a slight spina bifida, Scheuermann's... Also, I was completely sedentary until I was 17, ate like shit, sat up to 8h/day in front of the PC. When I began training, I would hyperextend my back when deadlifting and squatting - the trainers at the gym knew next to nothing, the big guys would tell me not to DL/squat/Military press OR to use something like just the bar (and not to MP). This because I was skinny, they said nothing about the technique.
It's plain logic. If someone is skinny tell him to stop coming to the gym or go very very light. Right?
Also, my back was always trained about as much as my chest (less in the beginning, more later). Well, when I got (in a few months after I began training) to press 154 lbs (1RM), my shoulders could no longer take it (PAIN). Also, my shoulders would hurt like sheet if I did front or lateral raises (thumbs horizontal or up).
Anyway, my technique was good on all these exercises, certainly not atrocious.
I also had some neurological "problems" which stopped me from lifting for ~2 out of those 6 years. So, 6 years means that for the last 6 years I read everything I could about lifting, nutrition etc. About one year ago I got a pair of adjustable dipping bars, and as I said, 2 y ago I started DLing light. I now DL 300 lbs, and hope to get close to 400 this year. So, I can say that I've just "recovered" from my injuries, which were, practically, congenital weaknesses.
I can now bench using CTs tip on NOT keeping the shoulders down, which feels so much more natural, and also stopped the crackling in my shoulders. Now I can also do scaptions and lateral raises painlessly. And, I think I'm right with what I wrote about the OAP.
So, I'm happy I've no longer the injuries I had and CAN train. A 300 lb DL is something I couldn't dream of 5 years ago (spine and neuro). And I'm also in no hurry with the DLs, neither with the presses. Even 5 lbs/month to the DL means that in 5 years I'll be DLing 550 (at 28 y) (yes, I know progress is not exactly linear, and it comes harder after a while). And with 2 lbs/mo after that, I'd still be at 660 by 33. Why rush it? I've had enough numbness and back pain already.
This thread was about why the exercise can be useful; I certainly didn't mean to say that OAPs should be used instead of (heavy) presses, nor that you'll get hyoooge by doing OAPs instead of heavy presses - although when a beginner gets to do two strict sets of ten, the results will be very visible by comparison to how he looked when he began- and, also, HFT.