I ask because we're considering something similar over at rpg.se.
As one of the people involved in starting the blog, I would have to say no. It's totalled around 500 views in 2 months. My personal blog gets more than that, even without any sort of inbuilt community to aim it at. I'd wager that most of the visits to the blog come from metagaming and chat.gaming .
So, why didn't the blog work? My thoughts are:
- Lack of activity - We didn't have a regular posting schedule, just a few bursts of activity. Most of this is because it ended up being just the DF succession game and tzenes posting on it.
- Lack of promotion - Blogs work to build traffic by people reading an interesting article on the blog, and then thinking about checking out the associated site. It's what worked for the SO blog originally with the podcasts, for Joel On Software as far as promoting Fog Creek went, and for Signal Vs Noise's articles on design. Traffic from the blog was driven to the site, while the opposite was happening with the gaming blog.
- Lack of community activity - In that whole time, the blog had 4 comments. There were no interesting discussions between community members in the comments. As shown in the comments to this question, some users didn't even know we had a blog.
What these have in common is that they are down to the implementation of this blog, not a flaw in the blog theory as a whole.