I honestly can't think of any great advantages or disadvantages either way. I have friends and family who read the blog, so obviously they already know who I am. The other people that read the blog probably wouldn't know me personally if I came out - or if they did, I doubt it'd matter much.
I would still keep the names of DH, family, friends, and colleagues (i.e., anyone I mention on the blog) private. However, I guess if I come out, then they might be "outed" as well. Something to consider, I guess.
Does anyone have any experience with this, or have any advice or suggestions?