Following your logic, any post on price change, volume change, MM bid and ask prices, or any other fluid relational change of the stock would be off topic. You better get to deleting.
It's really pretty simple. All of those other metrics you list are relevant to the stock. The BoardMark count is nothing more than an indicator have how many users have ever shown enough interest in the board to mark it and not subsequently remove that mark. It is not in any way indicative of interest in the stock since there is no way to know when or why any of those marks were made.
It is there as a reference to nothing more than how many user accounts have the board in their Favorites. If you want to track it that's certainly your prerogative. However; as Shelly illustrated earlier, discussion of BoardMarks is generally nothing but noise that begets more noise and thus can easily be considered to be off-topic.
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