That's just some [silly CSS](https://github.com/reddit/reddit-plugin-liveupdate/blob/master/reddit_liveupdate/public/static/css/liveupdate.less#L141) doing that inlining. They're still separate `<p>`s.  I don't think it was intentional, turning it off doesn't seem to have any adverse effects.  No idea why I would've done that. Definitely in favor of killing that and doing embeds the right way.