Well, I think I use the whole upvote and downvote system very sparingly in ListNerds. The time I downvote something is because there is an obvious case of plagiarism, misinformation or content that shocks me (thank God, I haven't seen anything like this last one in Listnerds, yet). On the contrary, to upvote something, it has to add something very useful to me personally, like those mails about embedding images in ListNerds, new ways to earn money or something very pleasing, like a good set of pictures or a delicious recipe. I think all of that deserves a good upvote!

When a link isn't included, I can't upvote or downvote it. So, I just report it. The same thing when there's a dead link or a link that leads to a page that seems shady, even though it isn't so. As my "voting power" in ListNerds is so low, I try to use it only in cases of really outstanding or alarming content. For that reason, I can't upvote or downvote everything.

At first, I didn't understand the icons, they were too little or disconnected from mail subjects. Nevertheless, and as the time passed by, I noticed them and learned how to use them, thanks to the good ListNerds documentation around. I hope you find my point of view useful!