User blog comment:HoubkneghteS/Any good jailbreaking software?/@comment-4996890-20140102204355/@comment-31469090-20140102214534

Can you post a download link?

Also the reason was a trend of using 1337speak in 2005, which often replaced numbers with letters. This trend was associated with hacking and jailbreaking is similar to hacking (except it is legal).