flyseba90 ban clarification

After contacted Dave he advised me to make a new account and post a thread here for ask anything about my ban. My original nickname of banned account is "flyseba90" and as text when I log in says "Nice JDB". As I said to David, I really don't know what "JDB" stand for and after some counications I learned that is "Java Dive By". Now I ran around the internet to find something explaining me what is "Java Dive by" and didn't find anything but an article that says about some hackers going through Java to do something... I don't rhink this is the right explaination of "JDB"

So here we are, can some one explain my ban? Just to know how i went wrong, and if it's possible I can remedy. Thank you in advance.