these giveaways on twitter are often more about the engagement farming for the twitter owner than anything else
it's nice because all have a really tiny chance to win but what they get in free publicity and organic reach is usually enough reason for them to share a prize.
web 2 games.
There have been a lot of discussions about this, but I still wonder if you attract a lot of people (or a new audience) with posting these giveaways on Twitter/Telegram? They are dominated by bots and you need to be extremely quick and lucky to win a small prize. You will get views as everybody loves free stuff but I doubt it is really effective.
If you see they have 229k followers on Twitter so the reach is good although these giveaways are filled with bot but whenever there is some conditions attached to it the numbers of real participants goes up so you can always try on that one while they get good responses so they keep it up.