Your first sentence draws a conclusion using the benefit of hindsight. Your second sentence doesn’t make sense in the context. TVs and radios were also not broken before the internet.
That’s what I’ve heard. They may lead you on to keep you on the hook in case they need you without even getting work from you. This isn’t really a scam; it’s just about them wasting your time. And there are so many suckers that they can be picky about who they do this to.
If you really want to freelance or have a startup, you have to be able to differentiate these people from legit opportunities. That can be extremely difficult; someone that seems like a scammer could be ready to pay a great rate or invest in your company; someone else that sounds legit could be wasting your time.