So far, no response from theymos unfortunately guys. I guess no news can sometimes be good news though! Maybe it's in the works 
Maybe he's on holiday ;-) so wait for a week or so and "Quote" the PM to him again in another reply. I had to do that like twice in order to get bitcoincleanup.com a factoid.
So, there's a ton of possibilities if you name it "Security & Privacy" or something along those lines, but ultimately it's in the main Bitcoin section. Therefore, should be limited to Bitcoin related topics. Physical protection of backups, installing software related to Bitcoin, and splitting your wallet up into multiple virtual machines or physical devices all come to mind.
I also agree that the name of the board should be "Security and Privacy" and not cybersecurity, so long as the topic has something at least marginally to do with crypto.