And here we are today. If this theory is correct, there are 750,000 less bitcoins in existence than what everyone thought.
I agree (in "speculating mode") with most of your post, but I fail to understand the 750K
BTC LOST COINS theory (you're not the first to come up with it). If they were stolen, what makes you think they are destroyed? I would believe the thieves have secured and/or resold them already, so they are still in circulation, not destroyed.