looks nice, somehow simliar to airdropper.
what raises concern right now is, that dropittome gets full r/w access to my dropbox. I don't want that and for sure it's not needed. using a sandbox like airdropper does, would be enough.
look how facebook or youtube are doing it... like or dislike. should be that easy. also I don't recall a situation where I thought: "well, maybe I like this beer"