Algorithmic curation is a process that automatically determines what content should be displayed or hidden and how it should be presented to your audience.
gapNot found in the next editions, but one of them is only partly captured, so this is not evidence it faded (D36).
Neither checker weighed 2019 Social Tweaks to Social Network Algorithms (2019-181, title only, news and social networks section). The 2016 text is about Facebook NewsFeed and Google/Yahoo news algorithms deciding what content is shown, the same feed-curation algorithms. With 2019 titles only, renamed to 2019-181 and faded cannot be told apart. A next edition is a partial capture; not finding the trend there is not evidence it faded.
A trend is graded on whether the publisher keeps it, never as a hit or a miss (D6, D33).
Quote is the first sentence of the paragraph under the title (several trends share the page). page is the slide number in the archived SlideShare transcript.