Really?
If I think it should be a top-level post, I read the grandparent, upvote it, and downvote the parent. Then I read the parent, downvote it, and upvote the grandparent.
Net impact: grandparent upvoted twice, parent downvoted twice.
I suspect you meant one of those "should"s to be "shouldn't."
I'm not the person who downvoted you, but I do think you're mistaken. If you think it should be a top level post, the parent and grandparent both tell you to take the same action. The problem with Dorrika's poll is that it tells the number of people who want this to be a top level post, but not the number who don't.
Also, if you "upvote a post twice" it winds up not doing anything because a second click of the "vote up" button undoes the first one.
In Anna’s recent post, she talked about training your mind to notice when it wasn’t curious about something and scream “Error! Look for a different way to do this” in such cases. Johnicholas and TheOtherDave's list of what stupidity feels like also looks useful for this purpose. I'm creating this post to make a more comprehensive list of feelings which indicate that people should reanalyze different possible paths to make sure that the one which they're taking is the most effective one to their objective.
Please suggest additions to the list in your comments -- I'll move them up here (along with links to further explanation, if given.) Keep in mind that your description of the feeling should be as illustrative as possible. For example, "feeling stupid" is unhelpful, while "you feel like you've taken a wrong turn into a never-ending tunnel" is better. Of course, metaphors which are immediately understood by some people may not be so easily understood by others, so try to give a more detailed description of the feeling if other people express that you're probably saying more than they're hearing.
List: "Error! Look for a different way to do this" if you feel like: