Yes, ask and a few other search engines will count them and you still may get trafffic to your site even from a no-follow link.
Nofollow links are just this kinda, which is not counted by some SE like Google, but some of SE count them.. and they can increase your traffic, but no lose
I see my no follow link in google webmaster tools. Do google still don't count it? If not why they are in google webmaster tools?
Google has said in the past that not all links listed in webmaster tools are also counted for ranking. The links shown are just a sample of what is out there, and they can be useful for finding out who is linking to you.
If you are getting good traffic it's just fine but will not pass PR juice. Links with nofollow are commonly used when selling links to gain traffic.
Google doesn't count No-follow links as backlinks to that particular site but there are some search engines which considers the no-follow as backlinks..Google is the king so we have to obey it's norms..
NoFollow links isn't bad at all. But they do not count towards Google Backlinks for your site. But they are counted in Yahoo, MSN and GWT.
Links in any form be it No follow / do follow / simply a comment link everything counts. Yahoo gives you SEO juice for everything but google is a bit choosy