This has been a thing since basically forever. From my point of view, once something has been announced broadly to staff then it's fair game. If you really care about stuff not getting out, you don't release it to hundreds of people. Mostly, we don't do the NDA chest thumping here once it's at that point. I 100% guarantee you that once front line staff know, competitors know. There's no point acting like it's some big commercial secret.
The other thing is that the people who know, mostly dont need to impress everyone with what they know. I would guarantee you that there are heaps of people who know, but they don't feel the need to post it to the forums for internet brownie points. There's an old saying; 'Those who know the least, know it the loudest', and I think that's really true with this. Oh you know 1 thing? Cool, so does everyone else!
I think the general feeling isn't one of keeping secrets, but it's respect for the person who told you to not go spreading it everywhere. I think that's why some people get their noses out of joint when someone comes in and teases something. It's like 'We all know that, be more respectful' and bring up nonsense about NDAs and whatnot to justify it. Really though, there aren't any secrets, most people who have been here a long time know what all the parks are doing a long way out. Sometimes it makes things hard because you want to say what's up but you can't. Parkz got slammed for being too negative a couple of years ago about DW's future, listing Tot, Wipeout Buzzsaw and Log Ride as rides that will probably close in the next few years. Some of that was information sourced from a variety of industry and inside sources, but it was also quite important contextually to give the full picture and provide accurate commentary. On the forums it's the same, you can't have a real conversation when you know stuff without taking stuff into account.
Broadly though, we as a group (i mean EVERYONE on here, not just the admins) get it right. Some people's lines are further than others, but I've not seen anyone have a full on dump everything they know online moment. Most people moderate themselves a bit and are respectful to their sources.The only thing I think we get wrong as a group, is we tend to play the person, not the issue. People love to name drop, and talk shit about management by name, and TBH I think that's worse than hinting that you know stuff. "This person mismanaged SW" "This person wrote a crap show" "This person botched the install of Sccoby Doo next Gen" isn't needed. SW has been mismanaged, that show is crappy, next Gen, particualy when it went in, was beyond a joke is saying the same thing, but isn't making it personal. I'm tempted to have that being a rule that we don't mention staff or management by name so you don't get the childish name calling and low key bragging that you get.
Also put more effort into not being triggered by people obviously trolling, and don't be the NDA police. Peace!