Coins should always be considered in a safe storage, there are lot of wallets and platform that could be used to hold coins, both of this has good side and bad. Where will you choose to store or hold your coins, in a close source wallet (exchanges) or an open source wallet?
That's right mate, it doesn't mean that you hold coins in a long term, you are surely get a huge profit in the end. Of course not, it is also base on its potentials capability for every altcoins too. That's why you need to do some research first before making an investment in every trading platform.
full control must be the main thing to get the security of your assets. i guess for erc20 i keep in mew this is quite safe.
as long as the private key is stored and bookmarked.
we have many options for storing coins but exchangers are not a good choice.
