The "problem" as I see it is that any owners who want to join the site in order to gain access to whatever information is there that will enable them to determine if they agree with the cause, are forced by the Disclaimer and Privacy Policy to support the cause before they know what information might be available or what that support entails. The contradictory statements contained on the website's home and registration pages, and here on TUG in posts about the website from owners who have joined, make it all very confusing for the folks you're trying to reach. That's all.
The site also states that anyone with questions can call or email with questions prior to signing up to AVOID confusion.