Adding Tags to posts in the Dojo

I was reading the Help & FAQ section in the Dojo and had a question about tagging. It says here https://dojo.domo.com/t5/help/faqpage/title/tagging that I can tag interesting posts or comments so that I can easily find them later and I would do so by doing the following:

To add a tag:

1. Navigate to an interesting post or comment.
2. Click in the Add field and type your tags (separated by commas).
3. Click Add Tag.

However, when I navigate to an existing post, I don't see any Add field to be able to add tags. 

On new posts, I see a Labels field, but not sure if that is different than Tags and I definitely don't see that option on existing posts or comments by others. 

Does adding tags to posts/comments still exist in the Dojo?