I have a problem with Nightbot. I know there was a topic about that but I think this problem wasn’t solved. When I want make a giveaway and I click on anti-spam most of the users are delete because they send too many messages before even giveaway started. Bot sometimes choose someone who even didn’t write the keyword.
You can always see the eligibility of each participant from the participant list. Users that are not marked as eligible in that list cannot win. If you are doing a keyword giveaway, only users that entered the keyword would be eligible to win. If you enabled anti-spam, users that entered the keyword more than once would be labeled as Keyword spam and would be ineligible to win.