Could be nice on some jobs I agree. Gets annoying when the key buff you need to watch is buried in a huge pile of status icons and constantly changing position.

Personally I'd like to be able to set exceptions or filters. You have the show only effects you inflict but I'd like to be able to see other key things for my job. Like always show storms eye or dancing edge if they're put up by another player in party /alliance without the bar being flooded with bios thunders aeros and the myriad of other icons that mean nothing to my current job.