Why are altcoin exchanged for btc and not for dollar?
having tons of altcoin is just like having bitcoin. If bitcoin grows, they grow. If bitcoin falls, they fall.
Isn't this pointless? Why not buying and selling alts for dollar?
I don't think the idea will be a good thing, first of all the reason behind bitcoin being the main trading of altcoins is because it is the most common and the widely adapted cryptocurrency in the world. Now imagine if you need to buy altcoins where do you buy place your money for it to go online or in internet? What I'm saying is that bitcoin is the easiest way for your money to be able to go online so it is commonly be used for trading.