You'll never eliminate flame wars or any of it's derivatives. You simply can't for the sole reason that the people that participate in those or are offended enough to start those silly subjective "debates", are probably suffering from lack of identity.

Therefore they lash out at anyone that dislikes or doesn't share the exact same preferences, it makes them feel personally responsible to "defend" their choices in life.

Flamer wars are inevitable, the internet was made for venting and complaining that people are complaining is a big waste of your valuable time.

Everybody gets one.