Yep, it’s how many are subscribed from your instance.

You need to be on a web browser, and at the instance you want to check. Scroll all the way to the bottom, and click instances. That example is from your home instance.

You might like this then

I learned about this community from your post. That’s so unfortunate.

How do you change that setting? I’m using it right now, and I don’t see any comment sort options.