There are diehard volunteers who do show up night after night or morning after morning. There are those also who do what they can, but have their own lives that they have to show up for. A few mornings of dragging one's self out into the frost to work a shift then go to work, then home to do laundry - or working all day then doing an evening or two does, as the article states, take a toll on volunteers. The number of activations has exhausted the current pool. Others will step up, or not.