I noticed some small issues.
there seems to be no way to preview a post
post date information - showing the date instead of something like “2h” or “4d” seems better to understand for me - also it shows only the last post date and not the date where a topic was created.
On desktop, you’ll see a preview next to the message editor. On mobile, there’s no preview, correct.
Really? I personally prefer the short notation as it gives a very quick impression of the recency of the reply. When a post is more than 30 days old, the date will be displayed.
The information is available in the HTML, perhaps it can be made visible in a #custom-theme