What version are you running? 2.0.6 What's the URL of the page this enhancement relates to, if any? http://demo.reviewboard.org/r/57/ Describe the enhancement and the motivation for it. Would find it useful to "Like" or "Thumbs Up" comments that you found useful. Or to signify that you to also endorse a pier's comment. What operating system are you using? What browser? OSX 10.9, Safari Please provide any additional information below.