That's true. Twitter giveaways typically get the most engangement though I'm not sure what's the percentage between real players and botters. I've also noticed a number of folks who have lost motivation on joining twt giveaways because of the low odds -- understandable.
There are tools to audit legitimacy of followers like these.https://www.twitteraudit.com/
https://www.followeraudit.com/
The first one used to be my favorite tool but they changed to give free audit for only first account. I am unsure when they changed their policy, from totally free to only first-one-free like this.
Hopefully they are using such kind of tool to audit the followers of the winner to see if they are really a real person or just a bot. Since if they let a lot of user do those illegal things and bot each giveaway they do then provably that those legitimate users will get discourage to join since they feel that there chance to win is so low due to those botters. But anyways we don't have any proof if those past winners doing that but one important thing for now is Metawin delivers what they promise to give to their winners.
Also I like the first one twitteraudit but its seems like when there site became famous they ask payment for their users who want to use their platform.
