For the record, I will never be one of the "sorry asses". I have no interest in any technical diving. I'm purely a rec kind of guy.What I said was "Sorry, that's exactly what I'm going to assume." In the case of cave diving, "verifying" involves you showing me your full cave card. After that, we do a small dive with you in front, running the reel. If you think you're going to read a book, browse an internet forum, practice in a quarry and do this kind of diving, you are insane. I am not being a hardass, I am worried for my friends who constantly have to pull your sorry asses out, usually dead.
That said, the post you quoted was a response to you and someone else. The part not directed at you specifically stated that the THEORY of diving is what you can get without help. The actual skill of diving must be acquired in the water, preferably with aid of a mentor or instructor, though, again, it's not an absolute necessity if you actually use good judgement and are truly self-aware enough to accurately assess your own skills. (Most of us are not.)
Your verification method is completely congruent with what I was saying, and quite prudent, in my opinion.