.webm

Is it somehow possible to use links (pictures/videos) with the .webm format here? There are tons auf hot clips/pics on reddit, imgur or gfycat. Naturally, I could download, convert and reupload them again, but with whats going on nowadays with copyright laws no one knows how they exactly work, it's a too great risk for me. A simple link to imgur/reddit/gfycat is more ... unproblematic. (still an infrigement though I think, but widely not as bad as download, convert, reupload imo.