While you’re at it, might as well add some lootboxes and cosmetics you can buy with Xcoins.

Spend money to get the coins. Spend the coins on the lootboxes and hope you can get a message booster. Without a booster, your tweets will be deleted in 10 minutes. If you have a booster, they will stay around for an hour before they get deleted. If you want better lootboxes, you have to upgrade them with with some more Xcoins.