I thought about using a fake, Oculus-only account but that's a false sense of separation as FB would see connections from my accounts coming from the same source IP unless I was going to separate them via anonymizing proxy.
We have smartphones now with a pretty wide rollout - I wouldn't be surprised if people that legitimately all share the same computer do have problems getting flags on their account from facebook.
Honestly though, the real answer is who knows - it's entirely proprietary information and all we can do on the outside is observe the fact that is does seem to be a pretty flawed detection system and guess at why that is. Does facebook use sentiment analysis of posts or post frequency to ban users they think are fake? Do they look for similar content of posts from different users to try and detect troll farms? I don't know and FB really doesn't want to talk about it.
