It's an "uncommon play" but I'd say it's very much a "basketball play". If a player with the ball committed the same action at the top of the key because they've used their dribble and the defender is right on top of ballhandler one wouldn't bat an eye (assuming nothing excessive).

The fact that he is out of bounds is totally irrelevant.

Why is this a violation? The thrower can only move 3 feet horizontally but they can move as far back or up as they want. Am I wrong?

Why does the player location matter? Maybe it's 94.7%???

It's The Black Line All The Way Around ...
 

Hey. I'm not the one who said, and I quote, "Sounds like about 90% of the fouls in most games".

99% of the foul calls that I make in my games are made involving players who are inbounds. And I still maintain that I may be wrong on my interpretation, so you don't have to convince me.

I Maintain That It's A Much Smaller Percentage ...
 

Maybe it doesn't. Probably doesn't.

The esteemed Forum member Camron Rust stated that when a thrower-in-er pushes the thrower-in-er's defender in the chest it "sounds like about 90% of the fouls in most games".

I think the push was the 90%, not the out of bounds.

Yup.

A Man Of Few Words, Actually, Two Men Of Few Words ...
 

Yup.