I have 7 inch long hands and a big phone.... it just happens. Nope the dent is only on the right hand and it's exactly where my phone rests at on my pinky.
My pinkies naturally do that, but I assume you're talking about balancing the bottom of your phone on your pinky and leaning it against the other 3 fingers/palm so that your thumb is free to type. I hold my phone like that. It's the most comfortable way I find.
That's exactly what I'm talking about but I'm guessing after about a year of doing it I've made a rather sizeable dent..
I have the pinky dent too.. As well as a right handed thumb callous, from my thumb being bent to text and scroll so often
I have it? it even gets sore, so I hold it differently at that point......when what I really should be doing, is putting the damn phone down and walking away when finger deformities happen..it really is a sign ?