Starting from version 2.1.0, Talk lets you search discussions by text and commenters.
Use the standard Confluence Search field on the top bar to enter your query.
The search queries syntax is the following:
| Query | Search by | Example |
|---|---|---|
talk:"some text" | Text in discussions | talk:"do that ASAP" |
talk:"User Name" | Commenters (search by login name or full name) | talk:"Alex Smith" |
Make sure to include your query in double quotes, if it contains spaces. Search by commenter also works only for a part of a name.