I only sign with my name, sometimes I include the phone number in case I feel that a phone call can help for a better communication, but that’s it.

Including the email address in the signature sometimes has its merit, as, let’s say you’re forwarding the email to someone else, who, in turn, forwards to another person, the original sender’s email, at one point or the other, will not appear as a hyperlink. Thus I think it’s actually a good idea, but I never do it.

I wouldn’t say that not signing an email is arrogant, but I would consider it as unprofessional if it’s an external email, and casual if it’s an internal one.