Definitely one I can see getting some use, Futura. I will add it now. We've pruned a few forums which get low usage recently so we have room for more.
It seems there is no way to edit a comment in the gallery. I responded to a post on one of my projects, but made a mistake which I cannot rectify. Further, the smilies do not work in gallery comments either - this is the thing I wanted to remove.
Yep that's working as intended. Important to remember that the "thumbs up" adds karma, and the "like post" also adds karma, and the two are not interlinked.