The 'ist' phenomenon

Sometimes, you run into interesting things on Facebook. (Well, if I did not why would I be spending so much time on Zuckerberg's monster-child?) One of those interesting things that I ran into was this ad posted by a friend on his timeline. Far be it from me to wax eloquent on exactly what 'opiniated' means...I assume that it is what us baby-boomers (wrongly) think should be 'opinionated'. And,