I don't think I ever hated Kirby, but I have gone out of my way to avoid purchasing/reading books that he illustrated because I find his artwork crude and blocky. Nothing has changed my mind in the 40 years I've been collecting comics. However, while I am unable to appreciate his artwork, I do appreciate his contributions to Marvel, DC, and the comics industry in general.
In the past, there has been other artists whose work I didn't 'get' only to appreciate later on. Artists such as Sal Buscema, Mike Kaluta, Kelley Jones, Don Rosa, and Sam Kieth to name but a few.
Given Kirby's breadth of work, I wish an epiphany can somehow click on, light a lightbulb for my eyes so that I can 'get' Kirby art and read all of the stories I've yet to read because of his artwork. But he's not the only artist I still don't 'get'. I've tried for so long to appreciate Toth, Schulz, and a host of others, to no avail...yet.