A signature is simply text that is entered in the posting textarea before you begin typing in the contents of a node. The signature can be editted for each node if one so desired to do so. So when you submit a node with a signature, the script does not know where the signature begins. It could be made so that adding a signature in User Settings would automatically wrap that text in a <div> tag, but I vote against that.

Besides, what's the point behind wanting to hide who wrote a post? Wouldn't that just make us an anonymous community? What happens after I spend all my votes? I'm not allowed to view the authors of the posts I didn't vote on? While it may be true for some monks that knowing who the author is makes a difference on their vote, taking names away wouldn't help. There are times when I don't even look at the signature or the author's name and I know who wrote it. With time, you get to know the way certain people write :)

[ Signature removed to conceal my secret identity ;) ]

Wouldn't that just make us an anonymous community?

no, as i wrote, div tags do not make any difference. you would have to specify in your private css that you don't want to see usernames - at the first glance, since even then it is relatively easy to see them.

What happens after I spend all my votes? I'm not allowed to view the authors of the posts I didn't vote on?

this is related to the first approach, which i said is the inferior one.

With time, you get to know the way certain people write :)

hmm. you're right. so, you gotta hide the node's content as well ;-)

let's wait if the patch particle made is accepted (somebody has finally to agree to it), and if it is accepted, what effects it will bring about. i'm looking forward to an answer.