They're just trying to ensure no one else uses the same number block as them so they get max charging speed.
It's a skill people will develop, no one was ever taught to back in and touch your tire to the concrete stop. I usually avoid those cause I'm used to having low cars. The first time we went to SC I looked around and said to my wife just do what they're doing touch your tire to the stop lol.
Eh, the lady in the first pic didn’t park perfectly, but she really doesn’t deserve to have her pic plastered on the internet either. Not a fan of this public shaming at all.