It happens quite the opposite. Bounty hunter tokens have not yet been paid, and investors who bought the token with a big discount start selling and the price falls. But much depends on the state of the crypto market.
Sometimes price of tokens falls two of three times from a nominal price. But during IEO there is no so big discounts.
Discounts like absolutely everyone, it's a great idea. I wish the project success in the future. We need to develop.
If the investor wants to invest in this project, he will take advantage of discounts of course, , if it is possible. But it is very difficult to predict the behavior of the token on the exchange after the listing.
Bonuses attracts people and gives them more chances but on the stage of IEO it is very difficult to predict the future success of the project. It is necessary to study all the details of the project.