On the technology-focused forum Hacker News, a user who goes by "graeme" pointed out, "This is likely to have a massive [e]ffect on the blog/article review ecosystem. Most of the review sites that exist today only do so because of [A]mazon's fairly generous programs. I expect in aggregate there will be a shift in what lines of business people decide to get into, based on this." A user called "sharkweek" said that "[a]s an Amazon affiliate who has done quite well with it, this is definitely a gutting." The mood is equally grim on a subreddit for people building affiliate websites.
The Commissions Report table gives you information about your sales. You can see on what date they were created what type of plan was purchased, and the campaign from which the sale has originated. If you only refer clients with your affiliate link directly without using campaigns, you will see that in the column "default". The last 2 columns show what the status of a sale is and what commission you can expect for it.