This is the most retarded thing I’ve ever seen in a URL:

http://www.surveymethods.com/Preview.aspx?B7A9BDB0E3F9E0F2F6BDBBB0BBF1E0ECB4&DO_NOT_COPY_THIS_LINK

If your survey system is vulnerable to reuse of the link, it’s better to fix the problem, rather than tacking on such rubbish at the end. Shame on you, whoever you are.