Possible to earn money on Yahoo Answers?

I saw a thread from Digitalpoint under the BST section, which a thread starter is looking for any quick jobs to raise money for his domain. There's one person who replied that he said CPA (cost-per-action) could make you money and you can promote products in Yahoo Answers, which he earned at least $10 daily through answering some questions related to his product. I am so attracted that I have my own Yahoo Answers account, and almost at Level 2. I could use this to promote products from NetPartner through my affiliate link. Yahoo Answers is a no-follow attribute, so I cannot build backlinks and perform real SEO there. Only that, I could maintain answers daily over and over again, just to be smart in answering relevant questions there.

Yahoo answers are really helpful to SEO?

Just as I suspected, one client of mine wants me to do SEO on Yahoo Answers about the topics on six pack abs and at loss. He will pay me $0.10 for each posts for a total of 250 posts worth $25. Since his iTrader is zero on DigitalPoint, and his posts were only about more than 50+, I said that he must make an advanced payment to me. Why? Because those who are newbies with zero iTraders must prove to themselves worthy of their service by implementing review copies on the selected high iTrader clients only.

But o the other hand, Yahoo Answers are very helpful indeed for some reason. We must be careful not to spam anything with our source link provided, just like I have learned from my other account which was temporarily suspended for spamming ad just copy pasting with source links. It is helpful, but we should be careful.

Yahoo Answers worth for link building?

In webmaster forums like DigitalPoint, GetAFreelancer, Elance, NetBuilders, V7N and WickedFire, only a few webmasters are offering a job for us which is Yahoo Answers posting services. But why is it that Yahoo Answers set the links to no-follow? It's because Yahoo Answers are not really designed for SEO purposes, but in order to help people in answering their questions for such pride. But why would they do that? Just for backlinks? Many people or user accounts got suspended because of spamming and advertising their links on every answer they're involved. You have to be wise when you are answering something, and the source you are promoting. Webmasters pay you for such good quality in answering questions in Yahoo Answers.