You have brought up a really good point, one that I hadn't fully considered previously. Like many, I would avoid voting on anonymous nodes on the theory it wouldn't affect anyone's XP. This attitude really missed the whole point of voting, I see now - it's to evaluate the post, not the poster.

I am not sure I agree with you on this - perhaps it's still OK to vote on anonymous nodes to rate the quality of the node. Some people post excellent responses anonymously, for various reasons. Sometimes they simply don't have the option of signing on at the time, but are also known and active here. I really need to rethink my various assumptions...