Crackers and hackers are a modern day pestilence. They are the rebels who think it is cool to get into other people's computers, to explore the contents of those computers, to use them for their own purposes, and to leave a great mess after them. Some of them are quite skillful in this, you may never know your computer was visited by one of them. They may use your computer just as a platform on a mission to get somewhere else or they may use it as storage place where they leave stuff for their friends collect it later. Some crackers are a sorry lot of loosers, they just want to harm others, to destroy the files on hard disks and to cause, if possible, physical damage to your system. They are frustrated by something, angry at the cruel world that has mistreated them. Some crackers are jokers, they leave nasty, or funny, messages, or programmes, after them, just to show that life is not so serious.
One thing is common to all these people: They are all criminals, they all enter other people's private space - IDENTICALLY as if they entered your house and did all sorts of unwanted deeds in there.

This is my little message to you, the crackers who might be reading this page: I understand the excitement and feeling of success when you manage to enter into some computer over the net. I understand you may not feel like criminals especially because you never even see the computer you crack into. I can even see some good coming out of all this (in form of forcing the programmers and system managers making their systems real good instead of just passable). But, please remember, that you may - voluntarily or involuntarily - cause damage to something someone has taken pride in creating. You may destroy a file that contains the best science fiction/fantasy/adventure/... book you would ever have read. You may jam a hard disk that was just about to reach the end of a calculation leading to the cure of AIDS. You may hinder crucial information, desperately needed by someone, reaching him in time.
Whether you want it or not, you may cause much sadness in other people. Do you really want to do it? Do you think your life gets better if you do it? Do you think the world ends up being a better place (for you or in general) if you keep on cracking the computers? You may not have a heart, or soul, or conscience, but life is hard enough for most of us that we do not need any extra burden on it caused by your actions. Think before you do it the next time.