Hadith Contradicts Quran on Accountability?

[FORCE]

 

[Citizen X]

Hadith contradicts itself many many times, let alone Quran.

 

[Wake up Pak]

Ahadith not only contradict the Quran, but also many ahadith outright insult & mock the Prophet Mohammad and his companions. What will you gain by accepting these ahadith?
The Quran says it is complete & detailed, so do we have any reason to believe in ahadith?