I think the question he is asking is not if you're a fan or not, why do you still stay in the middle of it. For many that do spend hard earned money to go and still enjoy at least 90% of it, it's easy to understand why they might vent about the things that they don't like and otherwise were better or remember when it was. But, if they no longer go there, they don't have a horse in the race, why place a bet on it.
I think the ones he is asking is those that never have anything good to say, appear to hate the entire of concept, management or even change, which is strange since they don't like what is there. Why sit here and constantly respond with some boilerplate, non-verifiable hate massages about this place. That isn't love unless you consider loving to constantly put something down that they don't even utilize any longer. Why? Indeed. If there is something I don't like or it upsets me to the point of constantly spewing hate, then it is a very strange obsession. Unfortunately, the message is that the rest of us are fools for still enjoying it so in reality they are putting us down, not Disney.
Myself, have been accused on occasion of being toxic and negative. I'll tell you that I react to immaturity because in spite of Disney being a place where a lot of use find a moment of youth, I lose my cherub like demeanor when the topics are picky and just a waste of cyber space. That I react to! I will have a calm and, at least, attempted back and forth on specifics, but, when I read someone condescending, erroneous attempts to make us believe that they are capable of running a multi-billion dollar company it just gets the hair on my head bristle and I feel forced to comment before someone starts to believe the garbage and it doesn't matter whether it is some, allegedly, in the know poster or someone just wanting their 15 minutes of fame. The expectation of perfection in a man-made environment also boggles my mind.
It does get tiring to have to decide what is fact and what is opinion. Hell, we might be talking with Iger himself for all I know (I doubt it though), but, when something seems trite or loaded with bull, I react.