It's a sad commentary that having rules and consequences is now termed "abuse" isn't it? I know the title was tongue-in-cheek, but it caught my eye. There IS a fine line between discipline and abuse, it's true. A whop on the buttocks is a far cry from a beating...and does a lot more good, imo.
When my son was small, I much preferred to talk things over with him, to make him understand why the rules were in place. Once a child is old enough to understand, I think this is a much better method. But there are situations when there simply isn't time to have a discussion, and a swift smack on the bottom is required.
Although the way my mother applied corporal punishment could possibly have been termed "abuse" sometimes, I don't feel I'm a whole lot worse off for it. My grandparents, for the most part, raised me and they were pretty sparing of the rod...but then I wasn't one to get into a lot of trouble either. When I was a bit older the "threat" of disappointing them was much more of a deterrent than the thought of getting a licking. From discussions with them when I was older, I know I did get a few lickings, but I frankly don't remember any, so I reckon I wasn't damaged in any way.
When a child is just whaled on with no explanation or excessively, I do think it's abuse. If the rules are stated and the consequences clearly laid out, the child then has the option to decide whether the infraction is worth the punishment or not. Consistency needs to be the rule, though...otherwise a youngster never knows what's going on.