Short answer: users can leave reviews on a group, but BuddyPress Group Reviews doesn’t document a threaded-reply or discussion feature specifically tied to reviews, it’s a rating-and-feedback system, not a comment thread. If you need back-and-forth discussion about a group, that happens through the group’s regular activity feed and comments, separately from the review section.
What the Plugin Actually Does
Members submit a written review plus a star rating for any group they’ve joined or interacted with. Each group gets an aggregate rating built from those submissions, giving visitors a quick read on reputation before they decide to join.
Admins moderate everything before it goes live, approve or reject, so a group’s review section doesn’t turn into a dumping ground.
Where It Surfaces
Reviews show up directly on the group page. New reviews also trigger BuddyPress notifications and appear in the activity feed, so review activity is visible the same way any other community update would be.
Members can sort and filter by recency, rating, or helpfulness, useful once a group has accumulated more than a handful of reviews.
Pricing
Free (v3.8.1, updated within the last few months, tested with current BuddyPress). Download it from the product page.