OP,
I think the important thing to remember is that there are good reasons for the so called "negativity" here. Some people really ARE having some bad experiences with everything - for example there are running threads on here right now where people are spending hours on the phone with Disney's tech support because they can't do something as simple as add their tickets to their MyMagic+ profiles. (It took 2 phone calls and about 90 minutes to get ours done correctly a couple months ago.) And that doesn't even get into the issues some people are experiencing after they arrive at the resorts and parks. (We had plenty of those too.)
I've been going to WDW for a really long time, and my advice to any of my friends who ask right now is "don't go this year". This is not the year to go unless you have the temperament to deal with a lot of potential issues, and you are willing to spend some hours of your trip potentially doing just that. If you go to WDW this year, you are statistically unlikely to have a perfect trip. Somebody's band will break, the MyMagic app won't work, the room won't unlock, the room charge won't work, whatever. Disney's got all kinds of wonkiness going on with ride queues right now due to the transition. In general, stuff's a bit too messed up. I would feel guilty if I recommended to anyone I know that they should go to WDW, and then have them come home and tell me how many hours they stood in line to get their broken room access fixed on their bands, how they couldn't get the front gate scanner to let them into the parks properly, how they stood in horribly long standby lines once their 3 fast passes were allocated. And how ripped off they felt because they paid so much for the experience.
So rather than worry about the fact that there is what you perceive as "negativity" on these boards, I see the information people post here rather as "heads up, I'm having this problem and here's how it's being worked on" or "here's what I did to fix it". For example, when I posted that none of our KTTW or MagicBands worked on the Comfort Stations at Fort Wilderness, I hope that others who saw my post took that as a big hint that they should test their cards/bands before the Front Desk closed at night, so they didn't have to stand outside the bathroom at 2am without a working key like I did.
I think anyone who goes to WDW this year DESERVES to get a heads up from experienced park goers on this board as to what they might run into, and how they can best get it addressed, and so that they go into it with eyes wide open and an understanding that they will be going to WDW in a time of change and substantial technical difficulty. If they judge it still worth their time and money go to, then fine, but at least they know going in what could happen.