Fun is making a computer do stuff using your skills which it was not originally mandated to do.
Then there is meta game of playing against other wizards of the world.
However, I dispise pair exploits and unskilled players using paid exploits. That's not magic.
Sure, that's fun if you're playing by yourself or if it is a part of the game. But if you're playing against other people who don't have that advantage, then how is that fun? Is it fun to cut in line ahead of others? Sure, maybe there's a thrill for a moment, but it should quickly become apparent that you're just taking advantage of other people.
If you want to play against the other wizards of the world but hurt innocent bystanders, then it's a very rude game to play.
Plenty of people out there who get several kicks out of doing exactly that. They feel powerful.
It is rude, it is unjust, it is not fair, but it is fun for those who execute their exploits and equally unfun and frustrating for the by-standing players.
It's still anti-social behavior. Does the degraded experience of honest players (i.e. victims) even factor in?