Correct. Everyone calm down. I am not even 100% sure if the developers haven't already thought of it and have mitigation already in place.
Relax while we work through it. I doubt it will take a long time.
Why bother selling the exploit if you could use it whilst having a short position in Monero?
Or better yet, prove it and steal all the funds, you'll likely make off with far more than 100 bitcoin before the exchanges shut down.
Yea right.. And what happens next, fork and rewind back to before the exploit takes place. Fix and /giggle.