Shouldn't the filters be named "happiness", "sadness" and "confusion"? This at least would appear to be the more obvious direct set of nouns for each of the adjective used in the tool ("happy", "sad" and "confused"). Was there some reason for using "praise" and "issues"?
This post was posted by Trevor Parscal (WMF), but signed as Trevor Parscal.
When we interviewed the Mozilla people about their experiences, they made this recommendation which I agree with. The mental space that a user is in when they give feedback and the mental space that a user is in when they receive feedback are different. To use the "strong" words (happy, sad) in the "feed view" could cause the feedback reader to take those emotions as being directed at them, which results in a negative experience. Further, the feedback reader is an observer; a more neutral tone is expected.
Tamping down the tone ("this is an issue" vs. "this is what people say sucks") is pretty much the goal there. I didn't see the Mozilla numbers about this but it was explained and made sense.
