Ahh, I see why we were not having this issue. In a situation like this, we put a single persons interview in a large multicam clip (we shoot double system sound, so we sync first and then place in a multicam clip), so we don't have individual keywords, we just have a "interview" keyword collection with each clip is named.
One thing you might try is command clicking more than one keyword collection at a time or create a smart collection that selects all your interview keywords. Then you'll be scrolling, but at least they will stay open. Use your second monitor (which looks like you are already doing) if you have it to show events and set your browser text size to Small, that should help. Of course you would need to rename your clips to add the name of the subject so it makes sense.
Another idea would be to save a bit of keystokes by using something like Keyboard Maestro (
itunes.apple.com/us/app/keyboard-maestro/id406298247?mt=12) to map command-A and then option-right arrow on a single keystoke. It would at least make things go faster for you.
I totally see your point about persistent disclosure triangles and will add this as an enhancement request also.