You can add me to Eric's recruits, since I learned about the NPL through him. I got in touch with him through the MIT Mystery Hunt Web page while requesting info about the '98 Hunt, and when I mentioned I was active in Mensa he argued for the superior merits of the NPL.
I'd like to be “Sue++”, since learning C++ is what's consumed most of my “free” time recently. Also, the term “C++” is an inside computer joke, since ”++” is the increment operator; for example, 4++ would be 5. Therefore, naming the language C++ meant it was a new, improved version of C, so I guess I'm a “better” Sue! (Snort, snort).