@KarlPro123 Yeah, just make sure you don't have them turned off in post settings and use markdown to add an image there:  (you can skip the alt-text obviously)
Unsolved GIF Profile Picture and Cover Image Support.
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Is there a way that you can upload gif profile pic or cover image in nodebb v1.18?
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Now that sharp supports gifs, this is possible in core without installing
nodebb-plugin-imagemagick
.
https://github.com/lovell/sharp/issues/3013