I don't think I'll be modding much these weeks, but here's an idea: how about we track some of VV's former developers and see if they can help us figure things out?
I think this is an excellent idea. Names are listed in the credits and can be searched on LinkedIn and Twitter, many game developers are hppy to answer questions as long as it won't jeapordize their current or future jobs.
Im guessing you are more likely to get info from people who are no longer in the games industy, bUT either way, promising confidentiality when reaching out would go a long way.
Wouldn't expect anyine to remember code, but they could point you in the right direction for big questions , like "is this file I found related to X" and "who could I ask about how Y works", or even "I am planning on doing Z, do you remember whether there were any big issues or hassles with this?"
Remember that it's a big team and people have different disciplines, so leads would be good for big picture questions , someone with a title like "fusion designer" will be able to answer questions about fusion file structure but probably not the game engine, etc.
Also, a lot of tme has passed since the game came out, so people may be less nervous than they were a few years ago.