h4x0r sp34k originally dates back to the ANCIENT art of hacking... back in the DOS days when a 14.4 was considered a futuristic connection and a 28.8 was unheard of it was used to make communications between hackers tough to read...

the modern perversion of the h4x lingo is soooo boiled down that most ppl only use e=3, a=4, T=7, o=0, |2 = R, |\| = N, |3 = b .... I saw a document from back in the day on how to hack that was written all in h4x sp33k. It's easy to read in times new roman, but enter some of that stuff on a DOS line and see how confusing it is to read...