Preview post

[robertDouglass]

There are certain dynamic features, like link unfurling, @ and $ parsing, making hyperlinks for URLs etc. that require a preview to see that they are all being executed properly before posting. This feature request is therefore to add a preview post (and comment) functionality.

[tsheaff]

I think the much better UI is to have the WYSIWYG post editor automatically unfurl while you're drafting your post so that when you hit Post it already looks like it's gonna look.

This breaks down into a few separate tasks:

• Add Autocomplete Mentions dips#35 which is to add a prefix-based username dropdown to confirm correctness and autocomplete as you type @foobar or $foobar
• Increase the set of things that are embeddable from the current list provided to more (e.g. using the og:meta convention?)