If Bitcoin's the man of the cryptoworld then all other currencies are his bitches. So why don't we call them bitchcoins instead of alt coins 
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?You cannot say such thing about Altcoins in that way. They are called Altcoins meaning alternative coins that we can use to help us in our needs. Altcoins and cryptos doesn't just created to give profits, it is created to become used. Be aware that Altcoins have the potential to be good if we know how to utilize it properly not just for self satisfaction.