Just to clarify this, as there seems to be some confusion.
The /feed/ URLs are not created by PokaTheme or the review system. They are a default WordPress feature and are automatically generated for all public post types (posts, pages, custom post types, including reviews) in order to provide RSS/Atom feeds.
This is expected WordPress behavior and does not indicate duplicate content or an issue with the theme itself.
If you do not want feeds at all, you can disable them without using plugins, for example by:
Removing feed links via functions.php
Redirecting feed URLs to the homepage
Disabling feeds entirely at server or theme level
These approaches are theme-agnostic and work regardless of whether you are using PokaTheme or any other theme.
Also worth noting: since the time this topic was opened, theme updates have been released, but feed URLs are still a core WordPress feature and will exist unless explicitly disabled.
From a crawling and SEO perspective, properly disabled or redirected feeds are perfectly fine and commonly handled this way on “concentrated” sites.
If anyone needs guidance on the cleanest way to disable feeds for their setup, feel free to open a new topic and we can point you in the right direction.