So, I did end up creating a blog about my personal finances. I couldn't really decide if it was important to be secret about my identity or not. It bugs me that we have all these social rules about keeping secrets, mostly about sex & money, two things that seem to occupy our attention a lot of the time.
I didn't make it anonymous because I believe it's important to keep it secret. I made it anonymous because I couldn't decide, but I know how to go from anonymous to onymous, but not the other way around. That is, I took the "safe" bet.
If you are a reader of this blog, and would like a pointer to my money blog, drop me a line.