You can see example of this feature below in GIF captured by Marie Haynes. Google is now showing preview of forum posts making it unnecessary to click through in many cases pic twitter com UAL0wrh5qw — Marie Haynes August 14, 2018.. In tweet, she expresses concern that this preview may eliminate the need to click through to the forum post itself.. Her tweet triggered quite discussion on Twitter, which led to Google's own Danny Sullivan chiming in to clarify that carousel previews are shown for few sites that have opted-in.. This only happens with few sites that have opted-in to the format. — Danny Sullivan August 14, 2018.. then the websites technically have themselves to blame for opting-in.. With that said, then all site has to do is opt-out.. This is one of Google's few types of search result previews that are opt-in only.. Most recently, Google introduced type of preview that displays expandable featured snippets. For what it's worth, it appears that Google's own web forums have not opted-in to carousel previews.
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