Of course yahoo answer is still worth your time, Ive got lots of traffic from yahoo answers by answering relevant questions and giving a solid answer of course. This proves that a good content is really good because when you post crappy answers you wont get any traffic and it can get your account banned too.
Yahoo! Answers is definitely worth the time when it comes to generating backlinks and traffic, as well as improving page ranking on your site.
Its awesome if you use tools like this to capture leads from the site. The backlinks are good, as any backlink but I use lead capture tools on answers to great effect. You can link to wiki page to give good info and plave a lead capture over the top of it. So yes answers is good
You are use yahoo buzz, yahoo pulse, yahoo bookmarks. You can get backlinks from this very easily. Yahoo answers helps to get good traffic not backlins. Yahoo counts no follow as back link so in Yahoo you are getting backlinks from yahoo answers.
its worth. although links are no follow, people can still find the page in search engines and can provide targeted traffic to your page.
There are several other benefits of participating such as BRANDING, MARKET RESEARCH BRANDING: More and more people will know about your products. MARKET RESEARCH: If people are talking about products related to what you sell, you might be able to spot what everyone is looking for, what they like, what they don't like.