I think never keep all your bitcoin anywhere not just an exchange. What of something happens ? Things always happen. Rather split your bitcoin across a few of your own wallets and a few investments. Keep minimum a mounts in exchanges.

Omw thing people forget is they look st their bitcoin balance but neglect to remember their altcoins have great value too so their altcoins sit in the exchange too and that is not good either.

yes , don't save all coin in one place. will will be better if you save in local too

The exchange itself may don't run away with the bitcoins, but there are other people who are always looking for chances to attack those websites which has huge numbers of bitcoin and they are always trying for that, if any of them get success then all of the coins are gone, that is why keeping coins in a exchange is never recommended.

Good thing my local exchange site haven't given me much of a headache. And to begin with, I don't really put a lot in my exchanger except for when I am ready to cash out already. I have seen too many cases of hacking to trust exchanges with too much money. Better to just scatter my bitcoins than risk losing everything.

For me even if it has 2FA it is more safe for an investor or trader to hold their available currency into a wallet. I know it would have more fees but is will be safer than actually having all your invested money into a site which is vulnerable to hackers. Also we must know that not all Exchange sites are safe so we really need to pick the best one, which we can trust our money in.

This is 100% true I have lost some of my coins on on exchange when they update and some of the coins have disappeared,even if it is a reputable exchange,you never know what's going to happen,either your wallet will get hack or the exchange will get hacked or run  away with every body's coin take the case of mt.gox

Yes, this is a very sensible idea to avoid losing their Bitcoins of exchanges, they need to save to your local wallet.

How can you be so sure that c-cex and yobit are safe? Only the owner of that site can say till when will be they are safe and won't run away your money? Remember what happen to mt-gox and cryptsy,(please correct me if i'm wrong) they are reputable exchanges but their site went down and never return again with the bitcoin and altcoins of investors there.

I definitely agree that Poloniex is the most solid and respected altcoin exchange in the market, but that doesn't mean other exchanges are scams. Yobit has a horrible support service, which might even take much longer to reply or solve open tickets compared to other exchanges, but that doesn't make it a scam. I can't really comment on C-Cex as I simply don't have much information about this exchange, but from the looks, just as is the case with Yobit, there are a whole bunch of shit coins listed for the sole purpose of earning money. Every fake dev and its shill supporters are looking to buy themselves a position on various exchanges to dump their worthless coins on rookies.