Why does the NBA still have the defensive 3 second rule? It does not make any sense in today's game. Originally, obviously it was to prevent teams from going full zone and planting a big dude in the paint to protect the rim. But now, if a team parks its 5 under the basket, the opposing 5 is going to think he is Dirk and run out to hoist a 3. Which is usually his bad decision, and shouldn't be a penalty on the defense. It seems like a defensive 3 second penalty now is just a "gotcha" move by an on-the-take ref when the defensive player doesn't immediately chase the offensive player working back towards the perimeter; it is no longer penalizing an actual defensive strategy, it is just rewarding the offensive player who is trying to hunt the penalty. The NBA is obviously trying to clean up players playing the officials instead of the opponent, this would seem to be an easy and annoying rule to fix.