Stop the script!11!1. :)
Well, if you could add some more conditions it would be great, like sbd is about 4.5 atm that I personally wouldn't sell at that price, just a quick check from coinmarketcap would be nice.
Also I'm new around here, I only used blocktrades once, and while I was doing that I just compared every possible return like how much eth I can get and how much usd is that. than ltc, than btc and decided to go with ltc. This comparasion would be automated. Just thinking out loud.