Whenever I see a coun name with Bitcoin extension, I ignore. That's why I did not buy Bitcoin Cash, Bitcoin SV ever. Mercatox is an average exchange, as this Bitcoin Classic coin kisted there suddenly and no one knows their tech and purpose, then I have no time to research this shit!
There are many bitcoin forked or altcoins with bitcoin extension coming, we know for the fact that nothing can bear bitcoin itself so why bother investing in it,when we are able to buy one which already shows how it perform. It can consider though for short term trading, depending on it's performance but for just a short time investment.
But every person in my opinion always wants to get a large profit so they will choose to invest in lots of coins but this also can ultimately be bad if they put their money into the coins. Maybe for me bitcoin is a coin that must be invested and some other altcoins like litecoin, ethereum are also good coins to invest.