I don't normally post just read the threads, but having read peoples responses, I thought it was safe to agree with them that there is nothing wrong with solo diving, and is generally caused by all the comments listed on the last 6 pages.
I have dived solo for more than ten years and heard all the reasons why not to. I personally like to dive solo, I get better photos and videos, and tend to enjoy the dive more than diving with a buddy. In the same breath I do have a buddy that Ive dive with on and off for the last 20 years, but we are so comfortable with each other we might as well be diving alone, unfortunately he's not always available and sometimes a little out of his comfort zone and vies versa.
I don't personally think there's a diving agency or instructor that would commission solo training, but I personally wouldn't recommend that someone who has just passed there open water course to move straight into solo diving, it would be reckless and irresponsible, Yes I have done a fair amount of training over the years with PADI and IANTD but this has been for my benefit and no ones else's. We as solo divers need to be a little more thoughtful as new divers read these pages, and where I am quit sure that all the divers posting have numerous dives under their belts, and hold a verity of formal training at a more advanced levels which makes them more than capable of planning and performing solo dives, I only wanted gift a little more incite than just trying to state why I like to solo dive and what made me decide to.
We all dive at the cutting edge, and solo divers tend to be very conscious about or dives, more so than buddy divers, as we have to rely on ourselves.