I don't think he actually believes /intl/ is a threat, he just keeps saying it is because /intl/ caused trouble for his buddies (the global volunteers who own /int/) by replacing their board, so he's trying to turn the rest of his site against /intl/ to try to get /int/ to come back.
The lesson here is that us "swine" should never usurp a legacy board or especially a global-backed board, or else the admin will step in.