I'm trying to sort out tags on our forum and came across System Tags in Tag Settings.
I've added a few there, but haven't figured out, how to add them to topics.
If it's relevant, we use tag whitelists for categories, so users can choose from a predefined list instead of adding their own tags.
Below the System Tags setting it says: "Only privileged users will be able to use these tags."
But where can I view and manage, who has privileges to use the system tags?

@PitaJ I tried to add a screenshot to my initial post, but got a "Unexpected end of JSON input" error message. But as you can see adding a screenshot worked now. In the screenshot I clicked on the avatar 'B', which is hidden in the image.

@julian By subthread I mean the replies that have been posted by clicking the small Reply button below a specific post not the big colored ones under the original post or after all the comments. The way I'm replying to you now.

And yes, it occurs here as well. Try to click on my avatar.

Hi, I searched a bit, but couldn't find any topics about it.
We discovered the following issue - when you click on a user avatar in a subthread, the info about the user is missing. All it shows is the black box, the online/offline status dot, @ symbol, and words posts and reputation. There's no avatar, username, post and reputation count. The bug was there already in 1.17.4 and it's still there in 1.10.1.
Is it a known issue?