Are you saying you are truly interested in selling 100btc puts?
Yes, it makes sense in my situation. I am not keen on sending lots of money to exchanges to increase the position (lost some on Gox), but would like to increase it (or pocket the premium if it never goes that low).
good to know rpietila is exiting his position from Bitcoin
Selling puts is actually increasing my position. Whether the total position changes or not, you cannot determine unless knowing my accounts.