People now learned their lesson about giveaway especially using prominent names in the industry like Vitalik and Elon Musk. I dont know how many scam giveaways has been posted using their identity and still confuse why there are still those who got caught. These people never gonna do a giveaway and even they do, a confirmation not just in one social account is needed cause chances that it's being compromise at the moment. Like what happened last time when popular Twitter account( authentic) was tweet a giveaway without their knowledge.