yeah until the coin pumps and you cant dump because you have to wait to upload. during any update to the token or its platform, its always good to have your coins on a supported exchange. Afterwards you can pull them out if you want.
Im keeping mine on Crex24 for now..
It should not make any difference where the coins are stored. The safest way is if they are on a wallet to which you have the private keys.
In the update case the program will be extended with features. A pump & dump should not matter here. Because we don't do a swap or a split. Only Software Updates.
Btw:
Qwertycoin Web Wallet
anywhere. anytime. anyplace. any device.
The simplest way to use Qwertycoin
https://myqwertycoin.com/