Thread:Luxionmk2/@comment-26516989-20130824000244/@comment-26516989-20130824011528

1. To post irrelevant or inappropriate messages to one or more Usenet newsgroups, mailing lists, or other messaging system in deliberate or accidental violation of netiquette.

I found this as one of the countless definitions of "spam." On Dictionary.com

Maybe it could be applied to number 7 on the Blocking Guidelines.