Bitcointalk has 1.2 million posts in the Bitcoin forum, and 0.9 million in the altcoin forum, making it even more complex (it is really a crypto forum, not just Bitcoin, and Steemit is more than just Steem as well).

In fact, the Bitcointalk forum with the most posts by far is Altcoins - Announcements with over 4.3 million posts.

This is the problem with complex metrics. People rightly criticize Market Cap for being a simplistic way to measure the competitive position of a cryptocurrency, but when you try and make more complex metrics, you end up diving deeper into the nuances of the problems with each part of the metric. A collection of simple metrics is preferable to complex aggregate metrics that inevitably end up reflecting favoritism or are still just easily gamed.