Rightly so. While you might be able to sneak something in on their offtopic boards, they are about board games, real physical board games, you can buy in a store.
Your game is not a board game. It is a computer game. They do not allow computer games on their platform, why should they want to talk about computer games, lest allow advertising for such.
And as I mentioned below, your competion is triplea. Axis & Allies with AI and available custom scenarious, including popular stuff like LotR and whatever you find in the community. I did not check out your game, but maybe your ruleset and units could even be adjusted to be a module in that open source game. So yeah, no one cares about your game, as it is not a popular existing board game. Or is it? Try finding a community for online computer board games maybe.