I have watched this and similar YouTube videos and agree there is no proof they are scammers.
The best way to find out is to list concerns on this Forum as has happened several times very recently. There is much experience here for which I am very grateful. I guess the chances of any of us having chatted on line to any of these girls and recognising them are slim.
As for having been a victim, worthwhile asking although I guess (and hope) not.
Finally, it's been pointed out (by me and others) that scamming / fraud of one form or another is a bigger problem in the UK. In my case the police eventually arrested the individual (but she certainly wasn't on a YouTube video!).