These are general observations i've noticed, but obviously don't apply to every k-fan and i-fan.
In general it seems k-fans are more likely to abandon their idols and ask them to be kicked out of the group at any sign of controversy (dating, attitude controversy, bullying, breaking the law, etc.). Whereas i-fans seem to stick with their idols and defend them until the end, even going to insane means to do so like attacking the victims of their idols.
The greatest example of this is with the recent bullying scandals. most k-fans seem to want soojin and hyunjin exiled from the industry, whereas most i-fans are defending them. This results in many k-fans calling i-fans "dogs and pigs" for their unconditional support of their idols.
what do you guys think, are i-fans too loyal or are k-fans too fickle?