No, they're usually function words that are in most documents and, at least look...

apendleton on June 15, 2015 | parent | context | favorite | on: Ask HN: Algorithms for text fingerprinting?

No, they're usually function words that are in most documents and, at least looking at a document as a bag of words, consequently aren't very analytically useful. Think "the," "of," "and," etc.