Thank you for pointing this out! We in Technical Publications had no idea this link was redirecting away from the feedback form page; we're told it probably went wrong when some web maintenance was done in December or January. We've filed a bug with the customer portal team to try to have this fixed, so you can access the correct page and complete the form.
When you can access the page with the form, every comment submitted is read and forwarded as appropriate. When feedback reaches our department, we make a practice of replying. Sometimes, it's simply to thank the user for the information, but we often have follow-up questions to clarify what change needed. We attempt to research and determine what improvements we can make. (For example, I have just asked the lead engineer for site modeling to confirm @rDesign's information about the Site Model from Source Data command, before we can update the help.) Sometimes we determine it's better not to make a change for any number of reasons, but we often adjust help in response to feedback.
I'm sorry the form is currently not working, and hope that will be resolved soon, but I assure you that when we do receive feedback, we take it seriously.
Kristin Bailey
Technical Publications Manager