It would be nice to let us know what negative posts you see about Bitcoin . and if you mean in Btctalk then .. people are simply trolling or simply lost huge amounts of money and blame bitcoin for their failure like "bitcoin used only for illegal things , drugs , weapons blah blah" ..
the goods things that are happening now to Bitcoin is that a lot of companies from time to time start accepting Bitcoin as payment method or Donation method . (Wikipedia , Microsoft , Mozilla firefox , and alot more )