this guy...rameshsoni is either crazy or is trying to increase his post count. he has done it in few other threads too.
I had this problem for awhile, they would suspend an account of mine if I even answered one question, or I would be blocked from answering anything with an error message. Try to make a new account, and don't leave any links in your answers. Or if you don't think it's worth it just don't use Yahoo Answers anymore.
I post a lot in Yahoo! answers and I do get some traffic. I haven't been banned yet (thankfully) but I think that's mainly because I post more answers in 'other' topics than I do to get my link out there. I have however, been banned from the MySpace forums, which isn't THAT big of a deal.