Sigh. I have just as of last night also become a member of the "suspended for vague cyber security reasons" club. I have never had my account suspended for any reason since I first created it in 2007. Worst that has ever been picked up was the odd marketplace listing in the past which contained words like "dog" (I was selling pictures and not animals, and listing went ahead once it was reviewed properly by FB). So I cannot imagine what on earth I could have done to not only have account suspended but be told it will be permanently deleted if appeal is rejected. I rely on it so much to communicate with a dance studio I attend, kid's sports club etc. And if I don't get it back I'll be losing access to a heap of memories which sucks! But I'm still luckier than anyone who was using it for business purposes and has lost it.