Good idea this, it would make user smileys a lot easier to remember this way also
In a similar vein, a customisable quick link would be even handier. First of all, forget [gallery], let's go with [g]
Let's say each image can have a identifier set like a primary key. So the first person can post a picture of a cat and set it's key to 'cat'
One could type [g]cat[/g] and get the picture just like that! I of course see many trolling opportunities as people set the [g]Borgs8472[/g] image and such, but that's half the fun