Hi there,
I just tried Zinc for the first time and absolutely loved it. There are a couple of issues I thought I would bring your attention to:
1) Posts alignment make little sense (unless it is an issue on my site only). Basically, there is this big gap under the 'moderate' and 'quote' icons which are pretty useless
http://postimg.org/image/hiww9aqfh/
The issue becomes worse when viewing the site on a mobile device
http://postimg.org/image/8lsppfb21/
2) Search area on the right hand side cuts too soon
http://postimg.org/image/x9mlsa0d5/
3) Voting is not possible on Zinc theme only
4) When posting a comment, the same problem happens as with the search (right side is slightly cut off).
http://postimg.org/image/irr2fkp2z/
5) When I try to make a comment, I get the following error: SyntaxError: JSON Parse error: Unexpected identifier "Notice". But afterwords, if I refresh the page or logout and login as a different user, I can then see the comment!!?
6) When a user press on the 'Moderate' button beside their own comment, the drop down menu is cut off
http://postimg.org/image/q42kpvjch/
7) On mobile view, if you are an administrator, 'Assign Moderator' clashes with the quote and the 'Moderate' buttons
http://postimg.org/image/gcbe6rh2l/
8) On mobile view again, if you are a registered user, you can see the voter overlaps the text (red circle), also it kind of creates an unnecessary space (orange rectangle). Also you can see that the favourite bode is way too big (red box)
http://postimg.org/image/x5gdsx5jj/
9) Ask button colour does not respond to the colour chased at the backend.
Other then that, it's a great theme