I like the wordpress.com the way it is now. The fact that wordpress.com developed from an open source software and the spirit that no ads is allowed here make wp.com stand out among other blogging service provider. I absolutely agree that no ads is allowed in wp.com, there should be now and there should be in the future. I HATE reading a blog with so many ads in it so I don't want people to see any ads in my blog too.
I'm proud to become a wordpress user. :)