I'm trying to think of the word that is used to describe someone who always uses words that mean the most or least of a trait (like best, worst, fastest, slowest, brightest, smartest, etc. etc.). I thought there was a word to describe this category of adjectives, but I can't think of it! Thanks!
The category of adjectives is superlatives, after positive and comparative.
Overuse of such words, leading to sensationalisation, may be hyperbole.
Exaggerated statements or claims not meant to be taken literally
It was the best day ever!
Only the crumbliest, flakiest chocolate...™
There were millions of them!
The statements are hyperbolic.