Those are good points. Sustainability is a big deal online. Most projects that start don't make it to the one-month mark. Only a tiny handful make it to the one-year mark, let alone any longer. And it takes time to learn how to do anything, to figure out what works for you and what doesn't. Very few crowdfunding projects -- or any projects, really -- turn into a raving success overnight. Most people just do not have the staying power.

If you're going to create a webcomic, webserial, monthly feature, or any other crowdfunding activity that's more than a one-shot event ... you need to think about the time it'll take to build an audience. Elsewhere there's a discussion about layered goals; it helps a lot to have at least one goal that is non-monetary. Many successful projects have a goal like "make me do more writing/art" or "practice X skill regularly." So if you can do that one thing, especially for a period of time, you'll accomplish something even if your crowdfunding only pulls in a few dollars.