They already set them up for a ton of sites, though, and often you can guess your way to a bang on the first try. I have only looked at the actual list once or twice. Plus it seems to match the closest one in cases of using one that doesn't exist. I can also go to a machine that isn't my own and take advantage of them there right away. I heavily use the quickmarks in qutebrowser, but also the ddg bangs. I just hit O for open in new tab and can put in a bang right there.