All it does is what a lot of people need. FORCED to go up to people and talk.
Remember the skinny guy they put in combat trousers and a baggy T shirt, looked like a sack of sh!t.
They can't tell the truth, because it wouldn't go down well with women (target) audiences and they wouldn't get the ratings for advertisers.
Unfortunately a lot of the info is typical what women would like you to believe propaganda.
I met Tracy Cox a few years ago, she knows all the tricks for women but apart from basic body language stuff not for blokes, and she was a bit lardy to be honest.
Other quacks include Alan Peas and his Missus, moved on to the more gullible audiences since giving up telesales training.
Peta Heskell is another one even less impressive, but I'll give her her due she's very good at giving media interviews for anything to do with sex.
When I knew her she was doing flirting courses in London.
Just my arragant opinions mind.