When reading the article on Key Points no. 1, then it's not 100% correct so I don't agree with that points, Dogecoin is widely used by Casinos and if I'm not mistaken there is a baseball club that accepts it as payment for ticket purchases (but not sure if it's still done)
source : https://markets.businessinsider.com/news/currencies/oakland-athletics-as-tickets-100-dogecoin-major-league-baseball-2021-5

However, it is undeniable that this coin has been used by whales as a way to enrich themselves with all kinds of news that are used to pump and dump the price, and small investors will be at a huge disadvantage so it's true this can be dangerous especially for small investor or those who are new to the crypto world.