:::Excuse me for chuckling as I read your reply.  As luck would have it, I could I expect argue either side here.  And don't have strong feelings, though no doubt if I worked at it I could develop them.  If I had enough time/energy, or better yet if someone else were to figure out where the discussion should be started (and actually start it), I would be happy to join in as well.   
 :::The reason I chuckle, is when I do have a strong feeling, and object similarly, I always meet w/the wp:othercrapexists argument.  And then I argue that that is a fine argument, as long as it's not my only one.  And then the other party disagrees with me anyway.  And unless I want an edit war/ANI, I have to essentially walk away from it all as we end up not agreeing.  It barely matters what the issue is (though the last I recall having this on, and caring, was whether it was ok to use a band album cover on the band page ... answer:no ... despite it often being the case, where I wanted to follow suit, editors lined up to delete it). 
 :::One last point/question.  Why don't you believe that there is danger in having one's signature out and about?  Seriously - if I were a ceo charged with signing an annual report that would be public record, I would have my secretary do it.  Now, with SEC filings online, there is some degree of risk that can't be avoided, but since banks still use signature cards, and checks can be mocked up, I think this may be a real world risk. See this for a quick example.