Sections 12 and 13 are deal breakers to me.  Especially 13.

If you post something or say something that causes someone else to file a legal claim against you or Intuit, you agree that you are legally responsible and Intuit will have no liability to you or to the third-party making a claim.

Let's say I post "ProSeries has an error" and then somebody files a lawsuit against Intuit for that error because they see my post.  The way I read it, section 13 says that Intuit will hold me responsible for it.