Meta: What do you think of a karma vote checklist?

I’m imagining an optional checklist offered if you downvote, with the list possibly including troll, poor spelling/​grammar, false, redundant....

For that matter, if an optional checklist for downvotes makes sense, then perhaps there should also be one for upvotes: sensible, informative, funny, caused an update....

I’m imagining a little chart appearing if your cursor is on a karma number, the way the proportions of stars do for amazon reviews.

I don’t know how much trouble this would be to program—I’m just floating the idea.