I likewise up-vote a lot of unfairly down-voted comments, but I've never up-voted one and seen it go higher than +1, even after refreshing a page. EDIT: I wond

I likewise up-vote a lot of unfairly down-voted comments, but I've never up-voted one and seen it go higher than +1, even after refreshing a page. EDIT: I wonder whether spreading this idea will make some people reluctant to up-vote low-ranked comments to avoid giving too much credit to unobjectionable but unremarkable comments.