# Tags & Hashtags

Tags are labels you attach to threads to group them by topic. They work across forums, so a tag collects every thread on that topic no matter where it was posted. Tag pages are shown with a `#` in front of the name (for example, `#photography`), which is where the "hashtag" feel comes from.

## Adding Tags

When composing a new thread, add tags in the **Tags** field below the title.

- Start typing to search existing tags.
- If no match is found, a new tag is created from what you typed.
- A leading `#` is optional — type `#c64` or `c64`, you get the same tag.
- You can add up to 5 tags per thread.

Tags come from the Tags field. Typing `#word` in the body of a post does not create or attach a tag — use the Tags field.

## Browsing by Tag

Click any tag on a thread to see every thread sharing that tag. You can also open the full tag directory from the **Tags** page in the navigation.

The tag directory shows each tag's name, an optional description set by a moderator, and how many threads use it.

## Subscribing to Tags

Subscribe to a tag to keep up with new threads on that topic.

1. Open the tag page.
2. Click **Subscribe**.
3. New threads with that tag then show up in your feed.

Unsubscribe from the same page at any time.

## Tag Moderation

Moderators and admins can:

- **Rename** a tag (every existing use updates automatically).
- **Merge** two tags into one (handy for duplicates like "photo" and "photography").
- **Delete** a tag (removes the label from all threads; the threads stay).
- **Add a description** to guide how a tag is used.