I have some ideas that are very effective and I'm willing to share them for use here on the community (and also to give a little something back to the community). I'll only share them with mods however as I'm not willing to risk the tactics getting any special attention by spammers as to ensure they remain effective as long as possible.
Spam hasn't been too bad and I only have to report it occasionally. The automated stuff is easy as cake to stop and the human posted spam sticks out like a sore thumb no matter how well they adapt their own tactics.
Coincidentally Stratego is my favorite board game.