If that's what you want, then again, you have multiple sources for that. Twitter, Facebook, Mastodon, your own blog, etc.
1. Aggregate comments from Mastodon, personal blogs, etc.
2. Interact with these comments by upvoting and applying filters, etc (i.e. moderate)
3. Publish your moderation actions and apply the same type of metadata from other moderators (and moderation aggregators).
If Talk has any value, it's to serve as a starting point for Tool 2.