It's quite simple really, don't insult without reason. There is a huge difference between criticizing and insulting.
You can say WiiFit sucks to you because you prefer your games to have story and graphical prowess to such an extent that your eyes bleed. You can say the Wii sucks because it makes your arms tired. Sure, you'll have a flamewar on your hands but at least you based your opinion. Saying something sucks is already pushing it though.
Just proclaiming it sucks without basing it is insulting. What would you rather here from me?
"God of war sucks so much copious amounts of ass I can't believe anyone would like to play a watered down version of ninety-nine-nights".
"God of war truelly is a bad game. I mean, it's way to short and what there is, hardly as any replay value. I feel like it's a one-time affair. I deteste the controls and honestly, the ultra-violence seems to be the back-bone of the game rather then the gameplay itself".
See the difference?
The Doctor will see you now
Promoting Lesbianism --> 
