Dave,
Here is a request with no likely practical solution.
One 'solution' would be to enable the microbadge that says someone is a forum moderator to pop up a rollover tip that says WHICH forum (or at least one of them).
The problem is that I'm usually in the middle of a post or TreeMail when I want to look them up. If I "leave where I am" to look them up, I lose where I was.
Never mind! Instead I have a TIP!
If you want to look someone up WHILE you are rpelying,
hold down the "CTRL" key before clicking on their name.
Now their profile opens in its own window!
But building some other fancy behavior into the microbadges would surely be delightful.
The workaround I've found is to open a second instance of ATP with my browser, navigate to the same spot, click on their name, and look up their profile.
Or save my post in some editor, jump to their profile, and try to BACK BACK BACK if the browser lets me.