I agree with this for the most part but I don't think incorporating is that much of an issue. I can't speak for the US but in Germany it takes about 5 hours to form a company (UG similar to a LLC or Ltd.) and it costs about 100 or 200 EUR. With a company in place you have peace of mind for all the co-founders and nobody has to worry about getting screwed over if everything is notarized and on paper.