1) Spend money like playboy, partial reserve without revenue, so the pegging will be in danger sooner or later.
2) Issue more NSR to support NBT pegging which is doomed to be in danger, make early participants lose money via liquidity engine, then the architect becomes the community public enemy.
3) Bad fund management.
These lessons are useful for future if some people plan to issue a stable cryptocurrency. Remember the most important: the architect must have financial/economics background, this is NOT IT game, this is financial game.