Boards will require urgent need for Mod if spam increases, looking at Beginners & Help section it is less full of spam topics. The board is an English board which means all Mods are assigned to the task already, including users to report suspicious discussions.
There are plenty of options for low-ranked members who post in that section to earn merit. I think the reason it doesn't have an assigned merit source is because it's not a board where people visit regularly, unlike the local boards. But merit sources do visit from time to time, and if anyone thinks there are posts that haven't received enough merit, there are threads to report them.
For merit distribution in Beginners section, assigning a merit source would help aside activeness from low ranked members, the board carries helpful informations, you can find Bitcoin discussion topics, Wallet discussion topics and also Guide topics which are merit worthy but unseen.