Hi there, @deral123
A pleasure.
This is just during our pre-sale period that lasts one week. The pre-sale period it's meant to allow people who want to, funding us.
As many other blockchain projects do in their pre-sale periods, they offer a series of advantages to the people who want to fund their projects.
Our way to say thanks to our funding investors is a 20% discount and multiply their bought quantity per 20, in an extra airdrop.
I point out that noone is forced here to buy tokens during the pre-sale stage.
People would like more or less our offer, but it's still legit and it's the offer we provide to early investors.
Have a nice day.