I just had a good long chat with JasonD on the phone, and he convinced me that verifying someone’s ownership of a site is actually a good idea in the SEO forums for a number of reasons, and is quite definitely in CAP’s interests to avoid legal Actions due to abuse of the forum for “competitor cut-throating”.
e.g. I post my blackhatting / trademark abusing competitor’s URL for “SEO advice”, – people point out the BH’ing or perhaps alleged Trademark abuse, and the **** hits the fan, with CAP (as the “data carrier”) or posters being held accountable for comments which may or may not be true. Litigation central if lawyers get involved, and if the domain in question gets slapped with some SERP penalties due to the offending thread, it could get EXPENSIVE.
Anyway I agree with mr D that it would be useful for people [and cap] to avoid these pitfalls, and to confirm their ownership when they post their queries as well as a link to unique page on their site which verifies that they do indeed own a site, and to avoid confusion in future similar threads (I think this was the first time I saw such a thing mentioned on the forums – and I kneejerked into WTF mode!)
Perhaps in time, and after some discussion, CAP will add a sticky to the SEO forum to help insulate CAP and members from any potential problems, with some kind of forum charter or at least a READ BEFORE POSTING sticky, which one has to agree to, before they post in the forum (otherwise their post may, quite reasonably get deleted/hidden until they amend it)
This charter might include some type of recommended easy verification (e.g adding a page on http://yoursite.com/mycapverificationfile.txt)) and putting it in the relevant thread so that people can be assured they are talking to the site owner.
In any case, glad I had the chat with Jason – and I must add that I am sure that Jason wasn’t hijacking the thread for any type of personal gain (my cynical head did wonder if this was another SEO’er “working” the forums, for business 
) – It’s good to have a SEO Mod with a good holistic view of the SEO and business stirring up some interesting points of view and debate on the [quiet] forums.