percival: Many people do not understand
the wallet math. I will put up a comprehensive explanation - in easy to understand English - in a few days.
I had 5 bitcoins in my wallet at Poloniex. When I went to sell them, I could not get the cash out of my wallet into my bank.
I had to go to another Bitcoin site, have the 5 bitcoins transferred there, and then sell them for cash and have the cash transferred to my bank.
By the way, when I sold my 5 bitcoins, they were close to $3,000, after having made a run from the $2000. The commissions are horrible in this cryptocurrency biz!!!
Nothing I could do about it. I ended up getting $2700 for a Bitcoin that was valued at $2900.