Post count isn't really a factor towards people applying for a staff position. For example, someone who has 200 posts that are extremely helpful will be regarded in a more positive manner than someone who has 2,000 posts which consist of inappropriate messages.
In order to be a staff member for BC there's not much difference than any other game with a volunteer staff.
The most important thing is to be recognized by the staff as someone who shows great interest in helping keep the BC Community clean and friendly for everyone.
Here are some actions that would give you a positive response from the staff:
-Report Hackers/Rule Breakers
-Help new players out if they ask for it.
-Be active on the forums
-Be active in-game
You can't instantly become a staff member in a week, but with time and dedication to BC it's definitely possible.