I agree that Kenny wasted funds and probably set us back as a club, but he did that as a manager, and he didn't do it because he wished demise upon the club, he did it simply because he wasn't up to the task at hand. As far as fans singing his name, he is still a club legend for everything that he did for us on the pitch. He was an immense player for us, and deserves to have his name sung by fans. Kenny Dalglish is the only man, bar RAfa, who has worked for LFC in the past 20 years, who has shown his love for our club and has been Liverpool through and through.
Without getting into managerial ability and success, that kind of love for the club, loyalty, and standing p to owners, deserves to be cheered by fans, not only that, but it deserves a standing ovation.