About Mintpal: I had some nice trading these 2 days, made some 40% +. It is slow but improving, now accepts orders much better. And it is BOT-FREE ( like good old days) and fee-free. After all delays I am trading there now, sick of bots everywhere
Bots are not a bad thing. Sure, someone like you can't profit the same way, but you're only profiting from an inefficient marketplace - something that never lasts and is naive to think or want it to.
For everyone else, arbitrage bots are what keeps prices consistent between exchanges and severely increases liquidity.