Another thread on Arthritis

I fall for it time and time again - will I never learn?
I see a post on the internet headed 'How to be Free from Pain for Life' or some such rash promise. So I open it and start to read.
After a fairly long read about how doctors in LA (or somewhere similar - that should warn me, but I carry on) have found a new way to activate your natural pain blocking abilities and free you from pills and drugs for life).
Watch this short video.
Then I see an actor in a white coat, usually Asian but often American, who urges me to watch to the end.
40 minutes later, by which time I'm dying for a wee, I am asked to spend £££s or $$$s on a book written by a celebrated Doctor who I've never heard of.
Why do I waste my time on these scams?