Hi, first of all, i'm just found it reddit clone, and this is the best what i ever found. Congratulation for this! u/trangj (as i see, you develop this site) made a really amazing work with it. I really would like to install my VPS and play with it, because it's amazing.
Secondly, you should a little bit develop the link submittion. It would be cool, if the site auto-scraped the link og:title, og:description and og:image. And it would be good, if some social site link, like twitter, youtube, streamable, imgur or gfycat links are auto embedded and show like this on site. Plan you anything with this in the future?
Amazing, what you made alone with this site. I'm impressed. :)