The spike in SBD price never made sense, and I actually think the way this platform handles it is fine. If some yahoo's want to speculate and drive the price of SBDs up, better for Steemit users.
If the platform always treats SBDs as though they are worth a dollar, then there is massive pressure to sell when above $1. Eventually the irrationality will leave and the peg will function as intended. In the mean time, enjoy the basically free $.