@glipsnort and one other person has reported this problem:
Has anyone already pointed out that the scrollbar cannot be used on your forum and we can only scroll using the mouse scroll?
Who else is having this problem? Did any one have the problem and then fix it? I’m reaching out to support to see if they can help, and any information you can provide would be helpful. For example, what machines/browsers are you have trouble on? When did the problem arise.
On our end its puzzling, because there have been no changes to our theme in quite a while.