Is there not over 1,000 different cryptocurrencies now, but only a few that actually mean anything or have any true value?

If I release a cryptocurrency called CROKcoin would that actually be useful in any meaningful way ?

Can you tell me where I can come to understand the whole cryptocurrency scene as it comes to Steem market share and how to buy and sell it?

Could you point out some great idiot proof easy to understand existing posts : )

/ hugz ; )