There is nothing more infuriating for a defender when you’ve not caught an opponent but he still goes over and the referee is not smart enough to spot it. You are incensed.
Players have always dived but they are becoming cleverer now. Attackers try to win a penalty by planting their foot or leg so the defender has to run into it.
When I was playing I’d always be doubly careful when facing someone known for winning fouls. Usually it was players with really good pace, able to tempt in a defender then tap the ball away at the last second to draw the foul.