Never keep ANY coin on ANY exchange.

Fixed.

Please people, learn to put your coins in your own local wallets where you control the private keys, never have coins in exchanges. How many times this has to be said? I guess some people never learn.

I agree, there are lots of history where people who left their coins in exchange lost everything.  GOX and  Cryptsy are the bigger one, and there are some small exchanges too like sharex that just close and run with their client's Coin not saying the one posting this message have First hand experience of losing coins to an exchange/trading platform that shutdown.

You can also add bter exchange, they lost 7,100BTC+ last year on February, i think people have got enough lessons to not keep any coin in any exchange but the needs to profit, and a hope that tomorrow the exchange rate of a coin will be increased and to make a profit will never end.

That's right, because it's totally a stupid idea to safe your coins there. And I believe, some exchanges remind the users to not keep their coins there too.

That's right

It's good to remind people of this now and then as some may have missed this, especially those new to Bitcoin and not realise the actual risks of holding coins on an exchange.

Always is a good time to withdraw from exchanges and online wallets, some users need to know that they own its bitcoins only if they have the private key. Exchanges and online wallets aren't enough safe to keep your money.

I also don't recommend to store all of your coins in exchangers, if you like to store better you spread all your coins to 3-4 most trusted exchager because even if one exchanger go off you will not loss much of your bankroll.

I have aboutxxx amount of bitcoin in the exchanges. I do some trading. After trading, I will withdraw most of them.

I guess that most of these guys do not want to wait through the blockchain download

i use software wallets for a lot, like electrum, where the wallet is in your control, but the heavy lifting is done online