Something I am still annoyed by is the way editions work with traditional publishers and with Amazon—even if you update the content of a book on Amazon, it remains at the old published date for your first version of the book, with no way to change that.
So you pretty much have to use editions to alert readers the content of your book is not outdated. But doing so incurs the cost of giving up store rankings, reviews, etc., effectively resetting your book to 'zero' on Amazon.
Am I missing something in that process or is that just how it is for 2nd editions? It seems like I'm going to have to spend some time trying to get people to purchase the 2nd edition copy, review it, link to it, etc. to be able to get it to show up in search results with similar rankings to my 1st edition.