Why the fee is fixed?
Currently it is so low so that it is not attractive to be witness.

If obyte price increases enough it will be so high so that it will not be attractive to transfer value. If that happens there will be very little time if any to find a solution to that.

What solution do you have to this drawback?
Why you cannot have normal fee % of transaction that would be attractive to witnesses and users instead tou have fee that is attractive to both only in certain price value?