I Main Kat.
Yes when hexakill just opened up Kats were super strong because the map is so consolidated and lanes had plenty of ambush points.
I agree many people began playing Kat for that main reason and those who opposed them came to this forum to QQ.
Since then however some of those people have listened to the advice here and began taking cc and shutting her down hardcore.
Now there are several other champs who have been strong in this mode also and have been individually listed among these QQ HAXAKAT threads.
Now... I see alot of Kats doing nothing but providing a long line of free meals to those who are taking the advice and other champs reaping havoc across the map. (sometimes this even includes my Kat)
Do I QQ about each and every one of them?
No.
Why?
Because its a game and I enjoy a challenge even when I get my butt whooped I learn something. (If I am willing to that is)
I see this as the major difference between those on the forums complaining and those who are offering advice.
Th complainers don't want to learn. Simply put they refuse to. They just want to be handed free kills.
Those who offer advice enjoy the challenge presented and the reward of conquering it.
CC works extremely well when used right on Kat. I know as I have the deaths/losses to prove it.
And Kata hasn't ruined anything about Hexakill only those players who refuse to adjust do.