Without any other investments however there is no guarantee you can even pay out after 3 days. If I put in 1 BTC and the next guy puts in 0.03 BTC and that's it for 3 days, then I'm screwed. You have invested nothing into this other than some text in a post - no domain registration, no web design, nothing except some plain text on a forum. It would be so easy for you to take the coins and run.
People see these types of posts all the time, so expect a lot of cynical responses and mistrust.
paid every hour. if you deposit 1 BTC (6 confirmation) every hour you receveid 0.03 BTC
And you can lost your 1 BTC every seconds

when you earn a lottery ticket are you sure to win ?
When you play with scratch game are you sure to win ?
when you play lotto, are you sure to win ?
hyip it's a similar game, play or not play but is not necessary to write any bad posts.