There are many such instances and can't understand how people believe in them that Elon musk is giving away free coins to some lucky holders and even ask them to deposit some coins in first hand to get more from him and it seems to funny and stupid who fall in this trap but you should always check everything you see on internet as you know hackers these days are very smart to fool you so be sure to follow legit sources only.
Unfortunately, there are a lot of people who do, last time I checked there was a guy who made 200k+ dollars from one of the examples, he kept on putting it under vitalik's tweets for example and they just got fooled about it.
So when you are checking rollbit, maybe it’s not as common as Elon or vitalik, but you will 100% see someone trying to put something like "rillbit" or "rollbitt" or whatever close they can get as domain, as we all know not all ones are available but they will end up with finding something as close as possible and try to trick you, it’s better to not click on any link you see on twitter, just to make sure you do not get fooled.
Yeah there were many cases of these scams where they portray themselves as real account or even hack the original account and then make these tweets to scam people.From casino point also they can post fake links giving away hundred of dollars and ask you to click on the links which can be phissing attempts.So yes it's important to check for the original site and don't fall for greed with these giveaways.