Those may not be codes at all. There is something that was labeled "sporge", a combination of "forge" and "spam" that was used in an attempt to render newsgroups useless. Many times they used real words and/or names just to make searching news groups an impossible task. The instigators appeared to use some sort of random text generator.
Search on the word "sporge", and I'm sure you'll find plenty of background.
Hmmm.. I've never heard of that before. Thanks. I learn something every time I come to this place. :-)