CONFIRMED BUG Non-Working Button

So I'm not sure if this is intentional or a bug, but there's a button that doesn't work.

Summary:
In a forum section there is a button next to the subscription button, I click on it and nothing happens other than I get brought to the top of the page and a # gets added to the end of the URL.


Bug Type:
Performance or Usability.


Steps to Reproduce:
I'm logged in to the site, and going to any forum section. I click on the button and nothing happens other than bringing me back to the top if I scrolled down a little.


Reproducibility:
Always


Expected Results:
I genuinely don't know what this button is supposed to do. Is it a refresh or settings or something? Like I said, nothing happens.


Actual Results:
I click said button, and all that changes (noticeably) is that I get brought to the top of the page if I scrolled down and a # is added to the URL. The attached images show this. Image 1 is before and Image 2 is after clicking the button in the red box. The # is highlighted at the top of the URL. Other than that, nothing happens.


Device Configuration:
I'm using Goggle Chrome version 66.0.3359.139 (64-bit) full screen in Windows 10 Home.

If this is an intentional thing, then feel free to lock this. If there's more info I need to provide, let me know.

The button should no longer display to non-moderators. Thanks for your report!

Will mark as resolved once I actually finish the intended functionality for that button.