Just a wild guess since I have no idea about the technical aspects in counting-systems: May it be that excluding specific boards are hard to implement to the automated counting performed through the Yobit-website?
Why would it be hard to implement? They'd just have to count how many times specific boards are mentioned by specific table rows.
As mentioned, I have (obviously) no idea about those technical aspects in their counting-system and am not sure if I understand you right. Agree that it´ll be easy to count the specific boards by table rows (if their counting system is using table-rows) just the part to implement "posts in a specific board not getting counted by their inhouse system" was what I was thinking could be the hard(er) part?