_anderson
Retired Fanboy
It's called copyright law. And what jenkey and others are doing is illegal. Which is why modders for both FIFA and PES constantly have their files removed from sites like Mediafire. Konami is not in the wrong here, nor do they spend any time whatsoever thinking about dividing the PES community (?).
Modding ISN'T illegal according to any law in the world. Games might choose to make it a violation of Terms of Service for a number of very reasonable reasons (for eg. on online games where certain mods can give you unfair advantage over other users).
The reason modding in PES never died is because, even if Konami wants to, they can't do more than a lawsuit threat, in reality they know it wouldn't hold up on court,