Hi there. Totally get where you are coming from with this and I think this will be a common question with a lot of users out there. I think the key thing to bear in mind here is that the category list is not fixed but is constantly being updated.

For instance, here's a screenshot showing part of just one category (Business).

https://www.dropbox.com/s/438wp80tge0v8xy/Screenshot%202020-10-22%20at%2020.48.15.png?dl=0

This shows some of the sub categories within Business and next to them, the total potential social audience available to that category. The Facebook sub categories were literally added an hour ago, and so they are currently showing as having a zero audience. These will soon start going up and that's how almost all other sub categories will behave.

What you might want to do is sign up for a free trial (before committing to this offer) as that will then let you view the full list of categories and the total audience sizes for each. If you think there are any sub categories missing, please let us know and as long as they are sensible additions that will benefit the wider community, we'll get them added.

Hope that helps. I'll also see if we can get a more public page created to let folk browse through the categories without having to sign up to a trial. I'll see if we can get that released tomorrow ;)

Thanks again for the fantastic question. Im here if there are any follow-ups.

Ben