When chatting or addressing someone's handle in a post, do you mind capitalising their name? It shows a tiny bit of outward consideration in that you put in that extra gesture of pressing shift for the capital first letter. This might apply more to chat than forum posts. And when someone does vs doesn't capitalise, do you notice a difference in disposition?
Obviously nobody is going to note any drastic changes, but for all the subtlety it's worth, what does capitalisation actually mean to you?