WHY NOT!
Wow! What a thread. The OP states that this drownproofing skill looks like it would be a valuable skill to have but he never claims it is necessarily valuable because he is a scuba diver. He also asks if it is taught in advanced training. Is it possible that he wants to learn this skill and is only wondering if he might learn it later in his scuba training or if he must find a different place to learn it?
He got some good, solid answers to start the thread and even Devon Diver says that this skill could be "indirectly" beneficial. Unfortunately, a very experienced instructor and Senior Moderator, no less, began the trouble. His two posts are argumentative and only tangential to the original post. He downright contradicts himself in his second post by saying, "it is NOT a useful skill to have in anysituation where a person might drown on the surface." He continues in the last paragraph, "The only time drownproofing is a useful skill is when you are lost in a very large body of water with no possibility of swimming to help..." He had a perfect opportunity to teach a new diver but, instead, decided to continue to badger the op with a flawed theory and useless example. It is a sad commentary on his teaching style. It is also a sad commentary on his ability to moderate these forums.
I was going to hold my tongue here until another moderator, Hawkwood, jumped in to fan the flames on this thread again with the badgering and table-turning. Had you bothered to read the entire thread, Hawkwood, you would have known that one poster, rx7diver, indicated that he was, indeed, taught drownproofing in his OW course. What kind of people do we have moderating this board? They should be the level-headed voices of reason but in this case they act as the instigators. They should both be ashamed of themselves.
I think that drownproofing is a great skill to have in the back pocket of anyone who spends time on and around very large and unpredictable bodies of water. I would seek instruction at a swimming class rather than a scuba course. Good Luck.
Now, go ahead guys and moderate me right out of here!