A job applicant took our editing test and made some questionable changes. She circled "cutting" and "rocketing" in the phrase "cutting up ski slopes and rocketing through bobsled runs", the word "doggedly", and the phrase "lion's share", and then she made the following comment that applied to all of them: "do not use words that most people do not know the meaning of; keep it simple".
Um, sorry, but if you don't know the meaning of those words and phrases and can't even figure them out from context, then I think the problem is you.