It is not "necessary", but think that we are trying to build a big software system, with nobody's help more than what we can get from you, our future users.
With that small payment of 1 EOS you help us tremendously to fulfill the next objective that is to launch our DA-ICO on the EOS main net, together with a functional prototype.
Please help us to reach that goal!
Ok, well I registered, it's not much but I wish you guys all the best!