Fowler was the great one for being against grandiosity, the habit of using long or obscure words when the simple, familiar one would serve. Someone who says "I feel esurient" when he's very hungry (it means 'voracious'') , would be doing that, but it's commonest use is in 'officialdom' when jobs and ordinary actions are given grand titles.
Nothing wrong with using a different word, for variety, simply as an alternative, or when there is no other which gives the precise meaning desired. All the words cited fit those criteria. Do dislike vogue words though: trope and meme are my current dislikes.



