It is hard to find a reason not to try to raise money through an ICO. Right now, it is superior to everything else available, and since there is no real governance it is possible for the company to tweak the terms of sale in their favor at the expense of the investor. Up until now, this has been the case in most ICOs. If you lack the resources necessary for an investigation and are not fully literate in the language of ‘code’ this would go under your radar, which is, of course, the intent.