I tend to like rating major project updates up mostly. UNfortunately I can't keep up with every post, though, especially these days.

For negative rating I tend to avoid rating down posts when someone says something nonsensical due to not reading something properly, though, because mistakes can happen to everyone. I only rate down if I know the person is not doing any effort or if someone is impolite or snaps on people, same for narrow-minded comments (such as this games sucks because it has too many sub programs)