Moving from sub-categories to tags?

[Tayyab_Anwar]

Thanks for your responses. Really helpful!
One more thing I want clarity on:

@tshenry

Tags are created upon first usage. When composing or editing a topic, a user with tag creation and/or application privileges will see a tag chooser next to the category chooser.

Can I use the admin API to create a new tag? I don’t see that option in the tags API, it only allows me to create/update new tag groups.

My second thought was to create a new topic and add my desired tags to it through the API, but the available options in the docs don’t have a tags field in them.

Here are my options:

Why I need this:
I’m trying to test how my system will perform if I have 5000 tags.
I’ll also eventually need this if I migrate my topics from subcategories to tags. I will need to create those tags first.