Just read the whitepaper. Am a little disappointed, to be honest. It's basically a copy of the Crypti paper, and it's very light on details. If you're going to have an ICO, I want something more in-depth and technical than that. I recognize that I can read your code, as it's on Github, but that's not usually my preferred method for coming to an understanding of a complex system. My time is short these days, and digesting code tends to take much longer than understanding a higher-level description.

I bought into the Ethereum presale because every detail had been clearly exposed in its white and yellow papers. With Lisk, there are too many undisclosed details at present for me to feel very comfortable about its future right now. Maybe if I read the code and compare it to Crypti's... but that's a time-consuming proposition.