I am sorry but POD is a must these days.
In the last few weeks every ICO without POD turned out to be a scam (with the most recent example being highly hyped Bitmo). Only people who are new to crypto and don't understand how it works will take part in ICO made by devs who refused to do POD. It is basic thing to do it before launching. It will take you only several hours so if you are not here to cheat people, feel free to do POD.