Imagination, creativity and language skills are big part of reading pleasure. And pace is very important. 1. Too much of anything same turns many readers away. If I overuse "often", "impact” and/or ”door” it turns readers away. With swearwords... Multiply by ten. As a reader my first thought would be "doesn't he/she have large vocabulary. 2. If it makes story more interesting, it's good, if not, it's not good. You must ask yourself and your beta readers how they feel. When they say, it's good, take 20-30% away. 3. I'm a reader. I spend 15 euros to a book. Then author throws a load of crap to my face. It does matter - to me.