Regardless of the reason, I think less of anyone who doesn't turn it off. Made me cringe so badly when I sent an email from a new email client that added something similar and I hadn't checked the signature.
One reason I feel that way is that the only time I'd see it in a work context is if it's a phishing email.
One reason I feel that way is that the only time I'd see it in a work context is if it's a phishing email.