An idea just popped into my mind for the Sift. Sift Talk posts sometimes contain ideas for improvements for the site, new ideas etc. I think it would be nice for the original poster to be able to add a voting system to the post so others can respond to the idea in a easy way. This voting system can be as simple (as in: easy as the video voting system (upvote and downvote).

The main trigger for me on this idea was rottenseed's Sift Talk post What to do with dupes" and a post I made a while ago myself Top15 video's bugged? in which the discussion pretty much ended in no results.

This way it is easy for the developers of the website to see how much support or demand a certain idea has.