One thing for sure. You need to provide "intrinsic value" to your token, otherwise it is only a piece of programming code. This is your way to convince prospective investors to buy your token if you want a crowdsale. A crowdsale is basically asking investors to invest to your idea, an invention or innovation, a website, a company, products and/or service. If you have none of those, it doesn't make any sense.

And I hope minereum will provide a guidelines for interested entrepreneurs like us.