sell your tokens then.  I am buying on the dip thank you very much- so yours will be picked up quickly.  The investors asked Ohad to not release the white paper due to copycats.  Having seen at least one entity copy his writings, I think this is a good idea.   

following the CIVIC ICO model.  I was grateful to receive $100 in the end

Since the first condition was met (that the sale would stop when 1/2 the coins were sold), then that's what the contract says..that the sale should stop.  For people to read between the lines and pick and choose how they want things to be is not for the greater good of the project imo.  In due time more will be revealed, and if Tau Chain works in the end, the foundation will need a great deal of support to foster development.  This should be considered as well.  As someone said earlier..."we don't want to run out of money before we run out of ideas".