“Started” may be an exaggeration but this no longer seems hard and is bubbling to the top of the list of priorities…
Rough sketch of the plan: Put the countdown to next derailment next to or in place of the “bob is minding” heading, which avoids the problem of someone accidentally burying an eep goal. And then kill frontburner/backburnering. And then add tags and sorting by whatever you like — tag, time-to-derailment, pledge, goalname. For tags you could specify in the url, like bmndr.com/bob/tag/foo (same as the blog).