Back years ago when there was no google webmaster tool interface, individuals and web masters used to add their websites to this Google url www.google.com/addurl, which still works.
I don't think most of the people who use the interface webmaster tool would have noticed the Google's add url. Apart from this, looks like Search console (formally webmaster tools) will be a more closer opportunity for the businesses and will help a lot for even non techies too. There are high chances for increase in more signup's.
Let's see how it goes on!
