It would save navigation time (i.e. clicks) if we had a "Categories" tab visible while reading forum threads. The way it is now, after you read a thread or post, you first have to click "Back" and then you can go to "Categories."

It would make sense to be able to jump straight to the category list from wherever you are.

Just wanted you to know the workaround I created for this (for now!). I took a screenshot of the Categories button and placed it in the text above the tabs, with text that says "Click to go to the main page of the forum."

Now the tab is always there. (Just in a different place.)