I enrolled the subreddit in the Video and GIF hosting beta that reddit is hosting.
With this new feature, users can:
- Upload videos (MP4 or MOV, up to 15 minutes long) directly to Reddit
- Convert uploaded videos to gifs (up to 1 minute long). Directly uploaded gifs with the .gif extension will still be supported as before
- Trim uploaded videos within the mobile apps
- Read comments while watching Reddit-hosted videos
See this post for more details.