So I am not sure if this was directed at me, but I will answer anyway. I am by no means saying you have to cheerlead Disney if you do not like something in particular. I do not mind posting about your views or experiences.
What I mind are the posts that basically offer nothing more than "Disney Sucks" or "Stop wasting your money" or "stop coming here and saying positive things about the evil corporate overlords". Try to keep in mind that many of the people here are new to Disney, or at least have not been in years. They are spending a lot of their hard earned money and they are excited about their trips. They are here for advice. They are here to celebrate. They are here to learn. They want to know the must do's. The secrets and tips and tricks that experienced people like you can offer.
It's worthwhile to tell them "you can skip this and you won't miss anything". It's worthwhile to post on here that you are disappointed with
Genie+ or the latest firework show. It's worthwhile to post that Disney missed a mark, but the show could be better if they do x, y, or z (in hopes someone at Disney reads this).
It's not worthwhile to tell them they will have a horrible time, that they cancel and not go, etc. It's frankly not worthwhile to say 10,000 times in every thread on every page that you hate Disney and think they should die. We saw your opinion. Thank you. Move on. If you hate Disney so much, there is no reason you need to come to a Disney board and tell us why you hate it. If you want to offer your opinion on a specific topic on a specific page in relation to the topic, sure. But you don't need to repost on every thread a generic "here are the top 20 reasons I hate Disney". Instead consider posting related to the topic "I saw this show, and to be honest you can miss it. It lacks a storyline and the music was nothing special. Maybe use that time to catch <such and such a ride>". That's helpful and useful and guides the person while still expressing your displeasure.