Burp,
Yes, they don't post on the board (at least not with any handle we know of). However, they do answer private e-mail after private e-mail. These e-mails are WIDELY circulated, IMHO.
Try it for yourself, they will answer, unless you ask some point blank type question that they have to avoid. Just beat around the bush a little, you'll be surprised at what you get.
CPA
History repeats itself. In Wave's case, it is every three months.