I had the same thing happen last night. Hit the post button and the whole blog vanished?
I rewrote it as it was important because it was the day in Cambridge with @starkerz
Making a $5 loss roi in the short term isn't a problem as such. Remember the steem you hold is affected by the market price which fluctuates.
Long term it could go anywhere.

Ditto on the exchange costs. Way to expensive if we want mass adoption.
EOS should solve that issue.