Despite the title, this post is a great thing for meetup. It sounds like they took the classic advice - they launched early with a minimalist feature. Now this post tells them exactly how to improve it.

Of course, thousands(?) of potential advertisers are reading a "very unhappy" review, but I think that's overstated. The review is clearly positive on the idea, and on meetup in general. With a few tweaks, this sounds like a useful platform.