This kind of fake giveaway ads are approved in Facebook ads which is really surprising. When such posts reach the common people who do not have any knowledge about such scams, they easily fall prey to these scams. Facebook is unable to detect a fake and scam website which is very frustrating. I have seen many times that Facebook approves such scams and fails to detect them as scams. In the past, Facebook has even approved the advertisement of fake libra website many times. So not all the ads shown on their platform are credible.
There will definitely be a gap where scamers can advertise fake sites, especially ads on Facebook, they certainly pay a little money to make it, but in reality it can multiply if someone is trapped in it.
So no matter how strict Facebook, especially social media, prohibits crypto advertisements, there will definitely be loopholes to trick it.
Now scamers are beautiful enough that there are a lot of people using them for sure there are.
What needs to be done is if there is an investment with a return of 2x it means that it is not valid.