Actually, it\'s not making fun of l337 hax0rz because they can spell, they just type all their words with symbols and numbers.
I would say it would be more making fun of people who can\'t be bothered typing properly (see. Kopking and sometimes Ooseven

) such as AOL Chat users, combined with l337 hax0rzizng.
I mean really, we butchered two beautiful languages by combining them!