The question has arisen in post #860017: should it include bad grammar/spelling by native English speakers (that is, 'reasonable' mistakes in addition to all-out word salad)?
Considering the origin of the term and the nature of the posts currently populating it, I would personally say 'no'; whether it deserves its own tag or should just go under error or something, I'm undecided about.
Updated by Saladofstones