I could not agree more, Sam Grobart received an email with a 15 line email signature. Not only have I received similar but think about all those you get with image attachments for company logos and huge legal disclaimers at the bottom. Annoying to say the least.
If you get an email from me there are two options:
I know I shouldn’t include the URL but I do that occasionally for people that I think may not know about the site so that they can see who I am with one click.
Who needs 15 lines?