why are these words suddenly popular?

A list of 6 words by hereticaneue.

• octogenarian 674752 appears on 24 other lists
• vernacular 674753 appears on 125 other lists and has 3 comments
• omnibus 674754 appears on 35 other lists and has 1 comment
• gauche 674755 appears on 111 other lists and has 5 comments
• non sequitur 674756 appears on 61 other lists and has 10 comments
• dubious 712934 appears on 91 other lists and has 3 comments