Another important thing: if you upvote in the first second as post appears - you'll have nothing - all curation will go th the author. In 15 minutes - you get 50% of curation. 30 minutes and after - all 100% are yours. But if you vote after whale, you will not have a penny also. So if you see polular post, sometimes it is better to vote at 15 minutes and get 50% then in 30 after whales.