this post was submitted on 22 Aug 2023
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Sync for Lemmy
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My guess: Reddit was serving not high res pictures (thumbnails) while scrolling and only gave them when opening.
Instances would need to create a thumbnail and the actual video. This would require a smal-ish CDN and processing power + storage to save the multiple versions to, right?
Idk about NSFW but arent they just hidden? To my knowledge at least Sync only shows "NSFW" and a blank single-colored post for an NSFW post.
You can hide NSFW previews but they are loaded in the background.