I used vacation mode last summer, and what a bad idea that was! I certainly learned that changing my Shop header and shipping times in my listings is a more profitable way to go with vacation issue.
In reality, it took months to get my views back where they were, I was so depressed. That is when Google changed their search engine to Penguin.
What can really help is to list new items every day, spread them out during the week, don't list them all on one day. It helps Google and Etsy to get your Shop back up and running.
Good Luck and hope you benefited from my learning curve.........LOL