- I find the icons in the bar on the top to be rather *ambiguous. I don't immediately know what purpose they serve, save for the + icon. Some text (just text?) would be useful here.
- The text underneath the link titles is very hard to read. I have to squint. The colour is too close to the white background it's on.
- I have no idea what the tomato and the T circle are supposed to indicate.
- Nested comments aren't easily scrolled over, because the indentation is quite small.
I'm not a designer at all, these are just some things that I notice as a user. Aesthetically I find the site to be quite pretty.
Edit: I like the concept a lot!