I just checked an ANN thread. There was a post regarding the last round of the IEO. They were offering 25% discount to IEO participants. I wanted to post on that thread. But instead of posting on that thread, I decided to create a new topic as there are many same IEOs.
Offering bonus on the last round of an ICO/IEO is really funny.
The bonus is valuable only if there are some other participants that sell the tokens at higher prices. I cannot understand bonus on the last round of an IEO. Even if they give 1000% bonus to investors, it doesn't differ. The bonus on the last round must be zero. These kind of IEOs try to deceive participants. It might be true even if we call them scammers.
If a token price is 100 satoshis and they give all participants 25% discount. Investors shouldn't be happy that they have bought the tokens at 75 satoshis. Because the price is 75 satoshis not 100 satoshis.
We can say the price is 100 satoshis if there will be a next round and some people buy the tokens at 100 satoshis.
There are bonuses given in the early stage of ICO so most of the interested people do buy them in the pre-ICO period and the new investors are nearly zero when the prices of token are maximum. In order to not to make the last stage of ICO useless and to attain the desired cap, projects do go with the bonus scheme even in the last stage. It doesn't really make a difference to the economics as the real price of token is the one with the highest bonuses.