Pursuant to my idea for Q:We need something novel to bring in the hordes, I think it would be very useful for all questions with many answers (>5, or so) to have an index of answers.
The index line for each answer could be culled from the first line of the post, accompanied by the user signature, and a mini vote-count/checkmark.
For most of the posts on codegolf.SE, this would effectively provide a list of the programming languages used by each answer without the need to add tags to answers (which I imagine would be a database nightmare).