Irrelevant, repetitive or nonsensical?

I posted on my other blog this afternoon (find out what mangos and poison ivy have in common) to discover that I have to use the word identification feature (and thereby prove that I am human) to post as my blog has been flagged as a "spam blog". A spam blog contains (according to blogspot): irrelevant, repetitive, or nonsensical text, along with a large number of links, usually to a single site. Having read my teaching evaluations for last semester, I have some students who might agree with the first part of that analysis!