I've gotta imagine that this is intentional by now on the part of the developers of this game.

It's not difficult to stop people sharing this content, you could simply block uploads and external URLs on the forum.

They don't do this because they like that this provides publicity for their game. It is excellent marketing.

Bit idea: Chinese intelligence agent who suffers from imposter syndrome because his colleagues keep congratulating him on uncovering classified US military documents but in reality he just checks the War Thunder forums twice a week

The comments suggest this manual is publicly available and this is indeed not classified information. It might be ITAR restricted, but thats a long shot from classified

https://www.flight-manuals-online.com/product/eurofighter-typhoon/

Warthunder is the best citizen counterintelligence op in existence

They're storing secret documents on Google drive?

to the posting troops

These Warthunder people are such nerds and I love it.

critical support to war thunder nerds for being some of the largest risks to US security

This is what? Third? Fourth time?

Okay maybe I'm too paranoid but the wording and tone of that sentence sounds way too fake oblivious and enthusiastic

I genuinely believe this is an op to trick foreign states into believing the Typhoon DA7 is worse than it actually is with the fake manual