a) 'self-opinionated'? What's this mean? Isn't this the same for everyone's opinion .
b) as for not mattering, maybe it does when it comes to debating certain shows, or how they're made, or the cast, or production and cinematography etc
Gonna go with what @Azeem and @nudge have stated - everyone's always had an opinion, there are just more ways of airing it these days. Whether that's for better or worse is another debate...