What you call hostility and negativity I would call reporting on my experience, honestly, in response to a question.
Every comment that isn’t butterflies and rainbows isn’t “hostile.” Some of us respect each other enough to provide detailed feedback...oftentimes because we appreciated the feedback given by others before us.
With all due respect, I've seen very little detailed or specific feedback -- what I've seen are a lot of unspecified, general complaints, complaints that have made the OP decide to cancel an event they had planned for and paid for. That's the original post -- based on what I've read here, I want to cancel.
We had one poster show photographic evidence, for example, that Main Street during fireworks isn't that crowded. And people with complaints shrugged it off. People talked about long lines, but few give actual numbers of how long they waited. If you cycle through a candy line in five minutes, does it matter how long the physical line was? These headliner waits -- how long were they, actually? Because Easy WDW said Splash, Buzz, BTMR were all less than 15, Space was about 25, Pirates 18, HM about 20, and that waits dropped as the night went on. Compared to a normal day, those are pretty low, and that was with a lightning storm shutting things down. If someone has different experiences, please share them, but just saying "it was so crowded and WDW oversold it" doesn't really help anyone, but it could scare people away because they might think "oversold" means "unable to move" and every feature taking an hour. If you're going to bash something, it might be nice to include the specifics you're bashing.
And I don't think asking for context is demanding rainbows. It's just asking for context, and to remember when the piling on commences, it can have actual repercussions to someone else's planning.