My thinking would be that local alpha testers actually respect the developers and their preference not to spread the information about the visuals of the game in the alpha stage. Whereas 4chan does not - and should not - respect anyone, and Owlcat Games in particular.
Ok. It's just that I wouldn't care about game discussion after the release, unless it's a guide I'm looking for, user-made content related talk or well-written review that I can read for entertainment. I mean, why would I talk about the game when I can play it instead? Besides, I don't really seek dialogue with most of the people on this forum. So, from my perspective it's better that you spill your guts now. I don't care about getting spoiled. No matter how much material people leak, they will never showcase the build up to the important events, the atmosphere, the small details etc. You won't get to actually "feel" the game unless you play it yourself. And even if somebody uploads word by word in-game texts or hours long gameplay videos I'm too lazy to read/watch it all, and by the release date I will forget like half or more of what I saw anyway.
Here are some Azata passives. By the way, is Azata female only or not?