When someone asks for a feature or reports a problem in the Inbox, link the conversation to the post about it on your feedback board. The post then lists the conversation beside its voters, so you can see everyone who asked, whether they voted or wrote to you.
Link a post
Beside the messages, the Linked posts card lists the posts a conversation is linked to. With none yet, it says "Link the posts this is about: it shows on them, beside their voters."

From Looks related
Under Looks related, Tuti suggests up to 3 posts whose titles share words with the conversation's subject. Only posts that are still open to votes are suggested (not completed or closed), and not those already linked. Choose Link beside one to link it. To read the post first, click its title.
Search for a post
Choose Link post….
In Link a post, type part of a title, or a post's number like
#12. With nothing typed, it lists the newest posts.Pick the post.

Each result shows its number and votes. Merged posts aren't listed.
A conversation can be linked to several posts. Linking isn't a vote: the person isn't told, and linking alone doesn't get them the post's emails, such as the one when it ships. To combine two posts that ask for the same thing, see Merge duplicates.
Unlink a post
Choose × (Unlink) beside a linked post.
What the post shows
On the post's page in the app, under Voters, Conversations lists the linked conversations, the latest linked first: each with its subject, who it's with and its status. Click one to open it in the Inbox. It shows up to 10, then how many more there are.

Spam conversations aren't listed, nor closed ones past your plan's history (see Work through your support inbox).
When Autopilot proposes a status change for a post, its review shows these conversations too, under What they asked. See Review Autopilot's updates.
When posts are merged
Merging a post moves its conversation links to the post it's merged into. If you try to link a post that was merged, Tuti points you to the one it went into: "#5 was merged into #2: link that one".

