I bet few people do - it seems to me it's a lot of metal just being wasted. If they wanted to give you something useful, they should throw a little screw driver in the box!
I actually prefer that. A TV mount alone is 70 dollars. And it's like a kit requirement. I heard a lot of monitors have space for the mount. It's a good question. I forgot to check if I can just leave the mount on the TV in the living room. Don't even remember what order the screws attach first.
Schools and libraries do. I only even seen a single HPC in a library, that was network nas for credentials. And there was a special mechanic that had to drill out the screw sections for theft protection.
There's so much associated with computer sales that causes waste. If you buy a Dell computer, etc., they almost always give you a mouse and keyboard you don't need. That's one reason I wanted to buy a NUC. But now I've got a metal plate I don't need ... they should sell it separately to the few people that might want it!