I checked your guide article about the instant cryptocurrency exchange services but there's something missing for me, which I am really much strict about it.
The
"SPREAD", I know this is one of the problems of some exchange services, especially those instant ones. As far as I know, those exchanges services that can do instant are getting profits on the
"SPREAD" right? The spread of the BUY and SELL price. Like if you will market buy and do market sell right away, you will lose a huge amount of money by doing that.
It could help other people to identify what exchange they will use where they can save more money. Even it will not be accurate spread, it is still important, just my 2 cents