One small annoyance is that bangs can be set with the exclamation mark _after_ the term, however, only if that bang (with exclamation at the end) was explicitly

One small annoyance is that bangs can be set with the exclamation mark _after_ the term, however, only if that bang (with exclamation at the end) was explicitly submitted. For many of my regulars, both exist (!w & w!, !gmaps & gmaps!) but as this isn't standard, it can lead to holes. For example, !hackernews works but hackernews! not. It would be great if all bangs could have both variants as standard rather than allowing submission of one but not the other.