I was spanked or popped a few times by my mom, maybe by my grandma too. I remember getting threatened more than the threat actually being carried out. They kept a belt on a top shelf and I remember getting told "keep it up, you are gonna get the belt — the buckle side!" I don't ever remember getting the buckle. I was a pretty good kid though I think, I'm the oldest of four, all a year a part. My brother was a classic middle child and was more of the line-stepper/crosser.
I remember the last time I was spanked though. Don't remember how old I was — don't think I was 10 yet — and my mom chased me around the dinner table. But I remember her heart wasn't in it. It was like we were just going through the motions. She caught me easily because I wasn't even really giving much of a chase, gave me a couple half-hearted licks on the hind, but I think we were both over it at that point and it never happened again.
I remember one time she interrogated all four of us for something broken or the like. "If no one confesses, you are all going to get licks." We didn't rat, all caught some licks, then she left the room to overhear us whoop our brother who was the culprit. She laughs about that to this day.
Not a parent myself, so hard to say if I ever will spank if I become one. I definitely feel like it's the easy way out, sets a bad precedent for conflict resolution, and would hope I have a better handle of psychology at that point to use other tactics for discipline.