I haven't even started writing publicly yet, for similar reasons, but my hope is that what'll happen is that I'll keep on getting better from the practice, learn more about things I've written about in the past, and be able to turn out increasingly useful stuff. I don't expect any of the info to be truly new, but if something took me a day to dig out of a few references scattered across the web, and I can preserve it all in one place, it'll help the next person trying to do the same thing.