Coins are here for bring innovation, and there is no innovation in changing some parameters and make an altcoin just for changing values - or even worse, by inputing some values in a site and pooping a new coin.
Most altcoins are dead or dying because people started to realize that, even Litecoin is dying, why do you think that your newly created copy-coin will survive? The profit time for pump and dump copy-scam coin creators is over.