Do you want to have to use 3 x $50 cards a month to pay your cable bill?
How expensive is your cable bill?

I pay less than $40 for fiber.
Around $115. Internet + base TV + phone.
They found the pain point of cutting the cord or switching to FiOS and are just below that. I could go to just internet and get some more streaming and loose the phone but it's not going to save enough to make me want to go through the time and effort involved.
Back to this, it sucks that people got scammed and lost money. But the NEXT time, because we all know there will be a next time, it's another thing that we can point to and say look it's a scam. Here are all the other scams that looked exactly the same way.
TANSTAAFL
There
Aint
No
Such
Thing
As
AFree
Lunch
The more we point out that things like this can be legit, but they have to really prove themselves, explain how it works and why it works the better we all are.
There are some places in the world that don't give a rats ass about KYC and everything else. But, there still are steps you have to go though and things you have to deal with.
Cards like what was offered really do fall into the 'magical internet money' category.
-Dave