So...what exactly is so wrong with /dance that we need to tie up a dev's time coding this? If you want to have fun, does it have to be coded, or wouldn't you rather just have fun when you want to.
And there have been enough complaints lately about bardspam. And if you turn off anims via /cmd filter, you could potentially miss some visual cue (use your imagination).
Also, already there are too many things that can happen TO you, that sometimes you may not want to. What if you don't feel like dancing and some happy-pants bard comes around annoying you. We already have rezzes that don't have a confirmation box (and you may be having Lag issues or be afk or not want the rez yet while chatting or something). We sometimes have overzealous chanters walkin around making everyone necro/frog/female/ogre/whatever, again with no confirmation box.
Let's just back away from this idea. It was just a funny thought a buddy had off-the-cuff and it's not needed.
If you wish to push for bard changes, go for Symphonies =) (I know, I know, they're coming. I am just anxious.)