The signature is fine. Please don't edit the question if that's the only thing you are going to 'clarify' - see Jeff's post on The Great Edit WarsThe Great Edit Wars for his suggestion on what to do when the author clearly prefers one representation of the question above the others.
In that post, Jeff sayssaid in a now deleted comment:
"But I would draw the line at editing solely to remove salutations, unless they’re unusually excessive." (Source)