Give and get support around quitting
Hover your cursor over their Avatar or name. A pop up should present with the option to Follow. Click on it. If that doesn't work, you can click on their avatar or name, go to their page and under their avatar on the right side of the line will be a Follow tab. May all be different in a couple of months when the site changes. But at the moment that's the way to do it.
Thank you very much!