It starts with belief in the competence of Ohad. Just like belief in Dan Larimer or Vitalik. Talk with Ohad Asor for yourself when you get a chance and if he convinces you that the idea is good then you can put money toward making the idea reality.
Is it high risk? Yes. But you don't get high return without high risk. An Agoras token represents belief in the competence of Ohad Asor himself and not much else at this time. If you don't believe then perhaps you should wait until there is more evidence?