Newgrounds will let you do that.

Yeah, Newgrounds but not fa or e621. Frustrating.

Hm, I thought e621 allowed videos?

Yes, but they end up .webm format

Ye.

On that note, rule34.xxx permits mp4s

That's work that could have been spent on FA+

Should be coming out next Year, since now we got the new Upload stuff and eventually in 2023 will be the new File Format Update hopefully. ^^

yeah, but what kind of ridiculous restrictions will be imposed on them? 720p for regular users and 900p for + users... Oh and 15 seconds max in length...
Im just disgruntled at their decision making process and the lack of foresight of what the site needs as compared to what they can lock behind a paywall.