Don't ask for a comment when downvoting, if the user just voted on a comment

Question

A bit of a nit-picky thing, I don't think I should be asked to add a comment if I downvote an answer after having just upvoted a comment to that answer.

I already registered my reason for downvoting with the comment upvote, so what you're accidentally encouraging here is a "-1!" or "Me too!"-type comment.

It should be possible to implement this check client-side.

Answer 1

I agree. If I've upvoted one of the existing comments on the post, it's quite likely that I've already read those existing comments and decided that one of them already expresses my reasons for downvoting. At that point, there's no need to nag me to add another redundant comment saying the same thing.

While waiting for this to be fixed, I've added a client-side hack to eliminate these needless nag dialogs into the SOUP user script. It's already in the development branch, and will be part of the next stable release (v1.40). For the curious, here's the code:

// TODO: add localized message variants?
var re = /^Please consider adding a comment if you think this post can be improved\.$/;
var oldShowInfoMsg = StackExchange.helpers.showInfoMessage;
StackExchange.helpers.showInfoMessage = function ( elem, message, options ) {
    if ( re.test(message) ) {
        var post = $(elem).closest('.question, .answer');
        if ( post.has('.comment-up-on').length ) return null;
    }
    return oldShowInfoMsg.apply( this, arguments );
};