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@@ -1,11 +1,13 @@
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# Frequently Asked Questions
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## Before asking a question on GitHub or Discord, please refer to this.
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### **1. Where does this extension get the data?**
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A Combination of Google APIs and scraped data.
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We save all available data to our DB for it to be available after Google shuts down dislike counts in their API.
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### **2. Video dislike count doesn't update**
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Right now video dislikes are cached, and aren't updated very frequenly. Once every 2-3 days, not more often.
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@@ -17,5 +19,23 @@ The extension collects the video id of the video you are watching, fetches the d
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### **4. What will happen after the YouTube API stops returning the dislike count?**
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The backend will switch to using a combination of archived dislike stats, estimates extrapolated from extension user data and estimates based on view/like ratios for videos whose dislikes weren't archived and for outdated dislike archives.
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+### **5. How is the dislike count calculated?**
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+RYD uses the votes from it's users to extrapolate the dislike count.
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+- If the video was uploaded after the API was shut down:
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+ $$ RYD \ \ Dislike \ \ Count = ( { RYD \ \ Users \ \ Like \ \ Count \over RYD \ \ Users \ \ Dislike \ \ Count} ) * Public \ \ Like \ \ Count $$
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+- If the RYD database somehow had the actual like and dislike count (provided by the uploader or from the archive), the dislike count will be calculated based on both - the users' votes and the archived value. The archived value will have less influence on the final count as it ages.
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+---
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+This in video form
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+[](https://www.youtube.com/watch?v=GSmmtv-0yYQ)
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+---
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## I have security / privacy concerns
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See [this page](SECURITY-FAQ.md) for more info.
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